.bash_history

./configure # packaging 
./configure --help | less # packaging 
./gradlew # java build project 
./setup.py test 
~/dev/flickrmirrorer/flickrmirrorer.py ~/pictures 
~/dev/img2vcard/img2vcard.sh photo.jpg > photo.vcf # convert image vcard 
~/dev/meta2jpeg/meta2jpeg.sh ./*.CR2 # copy metadata graphics image 
~/dev/schemaspy2svg/schemaspy2svg.sh ~/db # database graphics convert svg 
~/dev/tilde/scripts/git-mergerequest.sh master # create pull request 
~/dev/vcard/format-TEL.sh -i ~/contacts/*.vcf # format telephone number vcard 
~/dev/vcard/sort-lines.sh ~/dev/vcard/sorts/Gmail.re ~/contacts/*.vcf # sort vcard files 
~/dev/vcard/split.sh ~/contacts/*.vcf # split vcard files 
~/dev/xterm-color-count/xterm-color-count.sh # xterm color 
~/dev/xterm-color-count/xterm-color-count.sh -v # xterm color 
COMPOSE_HTTP_TIMEOUT=99999999 docker-compose logs -f --tail=10 
GIT_CURL_VERBOSE=1 git pull # debug 
IFS=':' read -a paths <<< "$PATH" # tokenize array 
PATH=$(IFS=':'; echo "${paths[*]}") 
PS1='\$ ' # prompt demo 
TAGS=all guard 
TAGS="$USER" guard 
abcde -Q cddb -o flac # rip audio cd 
acpi_listen # events power configuration 
adb devices # list android 
adb push PATHS /sdcard/ # upload file directory recursive android 
adb reboot bootloader # fastboot android 
adb shell logcat -T 10 # list follow android log 
adb shell # android 
ag REGEX # search recursive 
alias ls 
align_image_stack -vl -a aligned ./*.jpg # graphics 
alsamixer # audio input output volume 
amixer set 'Beep' 0% mute || amixer set 'PC Beep' 0% mute || amixer set 'PC Speaker' 0% mute # mute speaker 
amixer --card 2 # list audio hardware device configuration 
aplay recording.wav # audio output 
aplay --list-devices # list audio hardware 
aplay --list-pcms # list audio output speaker 
appres URxvt # list x application resource database 
appres XTerm # list x application resource database 
apropos REGEX # help man 
apropos --exact mv # help man 
archlinux-java status 
arecord --duration 5 --format dat recording.wav # record audio file 
arecord --format dat | aplay # test audio input capture output playback default microphone speakers 
arecord --list-devices # list audio input capture microphones 
arp -a # network list arp cache 
avahi-browse --terminate --all # network services scan local remote 
avahi-browse --terminate --ignore-local _workstation._tcp # network tcp workstations scan remote 
avahi-browse-domains --terminate # network domains scan 
avconv -i input.mov -codec copy -ss 15 output.mov # video cut 
avconv -i input.mov -codec:video libx264 -codec:audio copy -filter transpose=clock output.mov # video rotate 
avconv -i %04d.jpg -vcodec libx264 -bf 0 -crf 12 -an -r 25 -s hd1080 timelapse2.mp4 # video convert 
awesome --check # configuration verify parse 
awk '{ print $22 }' /proc/1/stat # process start time jiffies since boot 
basename "$(find -L /dev/disk/by-uuid -samefile /dev/DISK)" # disk uuid 
basename -- PATH.dat .dat # file name extension 
basename -- "$PWD" # current directory name 
bashdb example.sh # debug shell script 
bash -o noexec ~/.bash_history # verify shell script syntax 
bash --noprofile --norc -o xtrace # test trace shell 
bc --mathlib <<< 'e(1)' # calculator math e power 
bc <<< '2+2' # calculator math 
bc <<< 'scale = 10; sqrt ( 2 )' # calculator math precision scale float decimal 
bg # background job 
bind -P | rg --fixed-strings ' can be found on ' | perl -pe 's/((?<!\\)(?:\\\\)*)\\C/\1Ctrl/g;s/((?<!\\)(?:\\\\)*)\\e/\1Esc,/g' # keyboard shortcuts 
bind -p | rg --invert-match --regexp '^$' --regexp '^#' --regexp 'self-insert$' | sed "s/\(.*\)/bind '\1'/" | tr --squeeze-repeats '\n' ';' # shortcuts code 
bluetoothctl 
borg create --progress --remote-path=PATH --stats --verbose HOST:REPOSITORY/::$(date +%Y-%m-%d) DIRECTORY # backup directory 
borg delete --remote-path=PATH HOST:REPOSITORY/::$(date +%Y-%m-%d) # remove backup 
borg init --encryption=repokey --remote-path=PATH HOST:REPOSITORY 
bsdtar --list --file /boot/initramfs-linux.img | less # print kernel image files 
builtin # bash list 
bunzip2 file.bz2 # compression bzip 
cargo build # rust 
cargo init --bin project-name # rust project create 
cargo test # rust build test 
cat ~/contacts/*.vcf > ~/contacts.vcf # concatenate vcard 
cat /dev/zero > /tmp/ramdisk.XXXXXXXXXX/full.log # fill ramdisk partition file tmpfs 
cat /etc/papersize # print 
cat /etc/*release # os 
cat /proc/cmdline # boot command 
cat /proc/cpuinfo # hardware 
cat /proc/devices # hardware 
cat /proc/filesystems # hardware 
cat /proc/misc # hardware 
cat /proc/stat # hardware 
cat /proc/sys/dev/cdrom/info 
cat /proc/sys/kernel/pid_max # process 
cat /proc/vmstat # hardware 
cbatticon --help-all 
cbatticon --list-power-supplies # battery 
cd - # back 
cd "$(mktemp --directory)" # create temporary directory 
certutil # help 
checkbashisms ./*.sh 
chfn --full-name "John Doe" 
chmod go= ~/.ssh/id_rsa # permission 
chmod u+x example.sh # permission executable 
cmp --print-bytes "$(which arch)" "$(which uname)" # binary diff 
coffee -v # coffeescript 
comm -23 --nocheck-order <(alias -p) <(bash -lc 'alias -p') # list session aliases 
comm -23 <(rg --no-filename ^FN: ~/contacts.vcf | sort --unique) <(rg --no-filename ^FN: ~/contacts/*.vcf | sort --unique) # compare vcard names 
convert -density 150 -quality 100 input.pdf output.jpg # graphics extract image 
convert ./name-*.gif name-%04d.png # format number graphics 
convert ./*.jpg output.pdf # graphics combine image 
coredumpctl dump PID > coredump.bin # trace segfault 
coredumpctl gdb PID <<< bt # trace segfault 
coredumpctl list # segfault 
count . # filesystem 
coverage help 
coverage report --include='*/*' --fail-under=100 # python test coverage 
coverage run setup.py test # python test coverage 
cppcheck foo.c # lint c code 
cp file{,.orig} # filesystem 
cp --archive dir target # recursive owner permissions 
createdb --template template0 --username username dbname # postgresql 
cronlist 
cronlist --help 
cronlist --system 
cronlist --to '23:59:59' 
crontab -e # edit 
crontab -l # list 
csplit --prefix contact- --suffix-format %02d.vcf --elide-empty-files --quiet ~/contacts.vcf '/BEGIN:VCARD/' '{*}' # split vcard file 
csplit --prefix header- --suffix-format %02d.txt --elide-empty-files --quiet headers.txt '/----------------------------------------------------------/1' '{*}' # split file 
cssh server{1,2,3} # ssh multiple servers 
csvtool col 3 example.csv # csv column 
csvtool --help | less 
curl dict://dict.org/d:word # language dictionary 
curl --request POST --header 'Content-Type: application/json' --data '{"foo": 1}' https://example.org/ # post web api 
cut --delimiter=':' --fields=1 /etc/group | sort 
darktable & # 2d image editor raw 
date +%FT%T.%N # iso time 
date +%Y-%m-%dT%H:%M:%S # iso time 
date --date="6 months ago" # past time 
date --date="6 months" # future time 
date --date="2001-09-09 03:46:40+02:00" +%s # convert timestamp 
date --date="Friday" # today future midnight 
date --date="Monday" # today future midnight 
date --date="Saturday" # today future midnight 
date --date="Sunday" # today future midnight 
date --date="Thursday" # today future midnight 
date --date="Tuesday" # today future midnight 
date --date="Wednesday" # today future midnight 
date --date="now" # time 
date --date="yesterday" # time 
date --rfc-3339=ns --date="2001-02-03T04:05:06.7 + 1 year 2 months 3 days 4 hours 5 minutes 6.7 seconds" # dst time iso 
date --rfc-3339=seconds --date="@1000000000" # convert timestamp 
dd if=/dev/cdrom of=cdrom.iso # rip cd 
dd if=/dev/null of=/file/to/truncate seek=1 bs=1024 # truncate file bytes 
dd if=/dev/urandom bs=1kB count=1 | ent # calculate entropy 
dd if=/dev/zero of="${sandbox}/zeros.bin" bs=1000 count=5 # create file size 
deactivate # virtualenv 
declare # variables functions 
declare -F # functions 
declare -a # arrays 
declare -f function_name # function definition 
declare -p # color variables functions 
deluge & # bittorrent gui 
df --human-readable # filesystem list all 
df --human-readable . # filesystem current directory 
df --portability . | tail --lines 1 | cut --delimiter ' ' --fields 1 | rg --fixed-strings --invert-match --line-regexp --regexp '-' # directory partition 
dia --help 
difff --help 
diffoscope --text-color=always OLD NEW | less --RAW-CONTROL-CHARS # file directory 
diff --unified file{.orig,} # files 
diff --unified <(hexdump -C /bin/uname) <(hexdump -C /usr/bin/arch) 
diff --unified <(sudo sh -c env | sort) <(sudo -i sh -c env | sort) # environment variables root login shell 
digikam & # photo manager 
dig example.org mx # dns email lookup internet network 
dig example.org # dns lookup internet network 
dirname -- "$PWD" # parent directory 
disown %+ # nohup last job background process 
dmesg --color=always | less -r # debug os startup 
docker build . 
docker images # list 
docker info 
docker network inspect host # config 
docker ps --all # list container 
docker pull base/archlinux 
docker run --interactive --rm --tty ubuntu:14.04 /bin/bash # shell container 
docker system prune # clean remove container image 
docker-compose build && docker-compose up -d 
docker-compose run --rm test bash # shell container 
dos2unix example.txt # convert newline 
dotty graph.dot # graphics 
dot -O -Tsvg ./*.dot # graphics 
dot -Tsvg graph.dot # graphics 
dot -V 
drive=/dev/sdX && [[ -b "$drive" ]] && ! rg "^${drive}" /proc/mounts && sudo dd bs=4M if=ISO of="$drive" status=progress oflag=sync # iso write disk 
dropdb --username username dbname # postgresql 
du --si --summarize . # disk size 
dvdbackup --mirror --input=/dev/cdrom --output="$HOME" # rip dvd 
echo 0 61 62 63 | xxd -revert # hex dump convert string character byte 
echo example | xclip # clipboard mouse copy 
echo example | xclip -selection clipboard # clipboard keyboard copy 
echo return _VERSION | awesome-client # lua version 
echo !!:q | xclip -selection clipboard # copy previous command 
echo "body" > ~/.events/summary # notify 
echo "$OSTYPE" 
echo "$PATH" | tr ':' $'\n' # user path 
echo "$PROMPT_COMMAND" # shell 
echo "$REPLY" # read 
echo "$TERM" # shell 
echo "$WINEPREFIX" 
echo "${COLUMNS}x${LINES}" # terminal size dimensions 
echo "${PIPESTATUS[@]}" | tr --squeeze-repeats ' ' + | bc # array sum 
echo "${paths[0]}" # array 
echo "${paths[@]: -1}" # array 
echo "${paths[@]}" # array 
echo $BASHPID # shell subshell pid 
echo $$ # shell pid 
echo $? # exit code 
echo 'LC_PAPER="en_GB.UTF-8"' | sudo tee --append /etc/environment # print 
eject # hardware cd dvd 
enable -a # builtins 
enable -n # disabled builtins 
env # variable 
env - HOME="$HOME" LOGNAME="$USER" PATH="/usr/bin:/bin" SHELL="$(which sh)" command # emulate cron command 
env --ignore-environment bash -c 'printf "%s\n" "${?+?=$?}" "${#+#=$#}" "${*+*=$*}" "${@+@=$@}" "${-+-=$-}" "${!+!=$!}" "${_+_=$_}" "${$+$=$$}"; env' 
eval "$traps" # signal 
eval "$(resize -s 24 80)" # terminal 
eval "$(ssh-agent)" && ssh-add 
exec "$SHELL" # replace 
exiftool -AllDates+='-00:01:00 00:00:00' . # exif adjust date time images 
exiftool -common . # exif images directory files 
exit 
exiv2 print IMG_1234.exv # metadata 
expand --tabs=4 example.txt # convert tab space 
export DISPLAY=:0.0 # remote x display 
export key=~/.ssh/id_rsa_service_name && umask 0077 && ssh-keygen -b 4096 -f "$key" -t rsa && openssl pkcs8 -topk8 -v2 des3 -in "$key" -out "${key}.pk8" && shred --remove "$key" && mv --no-clobber "${key}.pk8" "$key" && unset key # create encrypted private public rsa pkcs8 ssh key pair 
extundelete --help 
ex -c '1' -c '?^[[:space:]]*[^[:space:]#]?' -c $'a\n# New comment' -c 'wq' ~/.bashrc # insert after last match 
facter id # user 
facter # hardware os 
facter --help 
fastboot devices # list android 
fceux ROM # nes nintendo emulator game 
fc # edit command history 
fc -l # list commands history 
fc -s # execute last command history 
fc-cache # refresh fonts 
fc-list | sort # list fonts 
feh --auto-zoom --scale-down --recursive . # images viewer resize 
feh --fullscreen --hide-pointer ./* # images viewer 
ffmpeg -activation_bytes ACTIVATION_BYTES -i input.aax -vn -c:a copy output.mp4 # aax audio convert 
ffmpeg -i input.mov -vcodec copy -acodec copy -ss 00:00:00 -t 00:01:00 output.mov # video split 
ffmpeg -i %04d.jpg -vcodec libx264 -bf 0 -crf 12 -vpre medium -an -r 25 -s hd1080 timelapse.mp4 # video convert 
ffmpeg -i %04d.jpg -vcodec libx264 -bf 0 -crf 12 -vpre medium -an -r 25 -s hd1080 -vf "transpose=2" timelapse.mp4 # video convert rotate 
fgit gc -- ~/*/.git/.. ~/.*/.git/.. ~/dev/*/.git/.. /media/*/*/.git/.. /run/media/"$USER"/*/*/.git/.. 
fgit pull -- ~/*/.git/.. ~/dev/*/.git/.. "/run/media/${USER}"/*/*/.git/.. 
fgit status -- ~/*/.git/.. ~/dev/*/.git/.. "/run/media/${USER}"/*/*/.git/.. 
fgit --help 
fg # foreground job 
fg && command # append command continue 
file README.markdown 
find -L . -type l # broken symlinks 
find -version 
find . -empty 
find . -empty -delete # remove files 
find . -exec printf '%s\0' {} + | while read -r -d ''; do printf %q "$REPLY"; printf '\n'; done 
find . -group 1000 -exec chgrp "$(id --group)" {} + # update files permissions 
find . -mindepth 1 -exec printf x \; | wc -c # count files posix safe 
find . -mindepth 1 -exec printf '%s\0' {} + | shuf --head-count 10 --zero-terminated # random shuffle files 
find . -path ./.git -prune -o \( -type f -exec rg --files-with-matches $'\t' {} + \) # exclude vcs directories tab files 
find . -regex '.*\(\.orig$\|\(_\(BACKUP\|BASE\|LOCAL\|REMOTE\)_\).*\)' -delete # remove git rebase temp files 
find . -type f -executable # files 
find . -type f -name '*.odg' -execdir libreoffice --headless --convert-to fodg {} + # convert binary xml 
find . -type f -name '*.ods' -execdir libreoffice --headless --convert-to fods {} + # convert binary xml 
find . -type f -name '*.odt' -execdir libreoffice --headless --convert-to fodt {} + # convert binary xml 
find . -type f -name '*.*' | sed -e 's/.*\.//' | sort | uniq --count | sort --general-numeric-sort # file extensions count 
find /proc -regex '/proc/[0-9].*' -prune -o -print # not process number 
firefox -no-remote -P secondary & 
firefox -profilemanager & # config 
firefox -safe-mode & 
firefox /tmp/xterm-screenshot.*.html 
firefox /usr/share/doc/c-cpp-reference/html/CPLUSPLUS/cref.html # help c++ cpp dev 
firefox /usr/share/doc/c-cpp-reference/html/C/cref.html # help c dev 
firefox /usr/share/doc/debian-policy/policy.html/index.html # packaging linux dev 
firefox /usr/share/doc/developers-reference/index.html # packaging linux dev 
firefox /usr/share/doc/git-doc/index.html # dev help 
firefox /usr/share/doc/ipython/html/index.html # dev help 
firefox /usr/share/doc/maint-guide/html/index.en.html # packaging linux dev help 
firefox /usr/share/doc/nethack-spoilers/gazetteer/index.html # game 
firefox /usr/share/doc/ntp-doc/html/ntpq.html # help 
firefox /usr/share/doc/python-doc/html/index.html # dev help 
firefox /usr/share/doc/python-matplotlib-doc/html/index.html # dev help 
firefox /usr/share/doc/python/python-policy.html/index.html # debian dev help 
firefox /usr/share/doc/w3-recs/html/www.w3.org/TR/2003/REC-SVG11-20030114/index.html # help reference svg 2d graphics 
fold --width 1 <<< foo # split characters lines 
fortune 
for path in ./*.jpg; do mogrify -resize '1920x1080>' "$path"; done # resize 1080p height 
for path in ./*.jpg; do mv --verbose "$path" "$(printf "%04d" "$index").jpg"; let index+=1; done; unset index 
for path in ./*.mp4; do ffmpeg -ss 1 -i "$path" -qscale:v 4 -frames:v 1 -huffman optimal "${path%.mp4}.jpg"; done # convert video extract frame image podcast 
for path in ./*.sass; do sass-convert "$path" "${path%.*}.scss"; done 
for path in ./*.zip; do unzip "$file"; done # all 
for path in ./*/.git/..; do cd "$path"; git -C "$(git rev-parse --show-toplevel)" checkout-index --all --prefix="../$(basename "$(git rev-parse --show-toplevel)")-copy/"; cd -; done # backup repos 
for path in /sys/class/net/*/address; do printf '%s\t%s\n' "$(cut --delimiter=/ --fields=5 <<< "$path")" "$(cat "$path")" ; done # list network interface mac address 
for vcard in ~/contacts/*.vcf; do python2 ~/dev/msort/msort.py --bp 'BEGIN:VCARD.*?END:VCARD\r\n\r\n' --sp '^N:(.*)$' < "$vcard" > "$vcard"2; mv "$vcard"2 "$vcard"; done 
free --human # memory 
fromdos -- file # convert newline 
fswebcam --loop 5 --resolution 640x480 webcam.jpeg # webcam capture 
full_name="$(getent passwd "$USER" | cut -d ':' -f 5)" && gphoto2 --set-config /main/settings/artist="$full_name" --set-config /main/settings/copyright="Copyright $full_name" --set-config /main/settings/ownername="$full_name" # set camera config 
fuseiso -p file.bin "/run/media/${USER}/mountpoint" # mount 
fusermount -uz "/run/media/${USER}/mountpoint" # lazy unmount 
gcc -Wall -o a.out foo.c # compile 
gcc --version 
gdb program # debug 
gem install bundler 
gem list --local 
gem server 
gem uninstall foo # remove 
getconf ARG_MAX # arguments 
getconf -a # system configuration 
getent ahosts example.org # dns hosts internet ipv4 decimal 
getent aliases "$USER" 
getent hosts example.org # dns hosts internet ipv6 hex 
getent passwd "$USER" | cut -d ':' -f 5 # user full name 
gethostip -d example.org # dns hosts internet ipv4 decimal 
get_iplayer --help # bbc video audio download uk 
get_iplayer --type=liveradio,tv,radio,livetv --modes=best # bbc video audio download uk 
gitk --all . & # gui 
gitstats ~/dev/tilde ~/gitstats && x-www-browser ~/gitstats/index.html # statistics history repo 
git 
git add LICENSE 
git add Makefile 
git add README.markdown 
git add tools.mk 
git add --interactive 
git add --patch 
git add .gitignore 
git add . 
git bisect bad 
git bisect good 
git bisect reset 
git bisect run ./bisect.sh 
git bisect start HEAD HEAD~10 
git blame 1234abcd filename # revision 
git blame filename 
git branch 
git branch --all # list 
git branch --delete topic # local 
git branch --remotes 
git branch --set-upstream-to=origin/master master # track 
git branch --track topic master 
git checkout master # branch change 
git checkout -b topic remotes/origin/topic # branch change create 
git checkout . # revert 
git cherry-pick HEAD@{5} 
git cherry-pick master:HEAD 
git clean --dry-run -dx # directories .gitignore 
git clean --dry-run -d # directories 
git clone git://libdivecomputer.git.sourceforge.net/gitroot/libdivecomputer/libdivecomputer 
git clone --recurse-submodules https://github.com/l0b0/cronlist.deb ~/dev/cronlist-0.1 && cd ~/dev/cronlist-0.1 && git remote add upstream git://github.com/l0b0/cronlist.git && git fetch upstream && git branch upstream && wget --output-document ~/dev/cronlist_0.1.orig.tar.gz https://github.com/l0b0/cronlist/tarball/v0.1 && git-import-orig --pristine-tar ~/dev/cronlist_0.1.orig.tar.gz 
git clone --recurse-submodules https://github.com/l0b0/mkgithub.git 
git commit 
git commit --all --message "Example" 
git commit --amend 
git config branch.master.rebase true 
git config diff.minimal 
git config diff.minimal false 
git config diff.minimal invalid 
git config diff.minimal true 
git config --global github.user l0b0 
git config --global mergetool.prompt false 
git config --list 
git difftool old new # gui 
git diff 
git diff HEAD^ -- README.markdown # last commit 
git diff master origin/master 
git diff origin/master..HEAD # remote 
git diff 'HEAD@{2013.04.30 08:00}' # date 
git diff --cached # stage 
git diff --color-words 
git diff --exit-code # check 
git diff --ignore-all-space 
git diff --ignore-all-space --no-color | git apply --cached 
git diff --ignore-space-change 
git diff --raw 
git diff --staged 
git diff --staged --ignore-space-at-eol 
git diff --staged --stat 
git diff --word-diff 
git diff | diff-ignore-moved-lines 
git fetch 
git fetch && git merge FETCH_HEAD # pull 
git format-patch --find-renames HEAD^ 
git gc # garbage collect 
git grep -I --name-only --null -e '' | xargs --null sed --in-place 's/[ \t]\+\(\r\?\)$/\1/;$a\' -- # git whitespace eol eof 
git gui & 
git help add 
git help bisect 
git help blame 
git help branch 
git help checkout 
git help checkout-index 
git help cherry-pick 
git help clean 
git help clone 
git help commit 
git help config 
git help difftool 
git help diff 
git help fetch 
git help format-patch 
git help gc # garbage collection 
git help grep 
git help gui 
git help help 
git help ignore 
git help init 
git help instaweb 
git help log 
git help ls-files 
git help ls-tree 
git help mergetool 
git help merge 
git help mv 
git help pull 
git help push 
git help rebase 
git help reflog 
git help remote 
git help request-pull 
git help reset 
git help revert 
git help show 
git help stash 
git help status 
git help submodule 
git help tag 
git init 
git instaweb start 
git instaweb stop 
git log 
git log Makefile 
git log origin/master..HEAD # remote 
git log --after '2012-01-20 17:06' --before '2012-04-03 16:15' # date range 
git log --all --decorate --graph # branch 
git log --oneline --decorate 
git log --patch-with-stat 
git log --stat 
git ls-files '*.py' # list files 
git ls-tree --long HEAD ./* | awk '{print $4 " " $5}' # file size commit 
git mergetool 
git merge origin/master 
git merge topic # local branch 
git merge --abort # cancel revert 
git mv README{,.markdown} 
git pull 
git pull --recurse-submodules=yes --update-head-ok origin master # follow initial fetch 
git push 
git push origin COMMIT:BRANCH # push commit 
git push origin :BRANCH # delete remote branch 
git push origin :refs/tags/name # delete remote 
git push --set-upstream origin BRANCH # push new branch 
git push --tags 
git rebase master 
git rebase origin/master # avoid empty merge commit 
git rebase --abort 
git rebase --continue 
git rebase --interactive origin/master # change local commits 
git reflog 
git reflog show --patch-with-stat 
git remote add -f origin ssh://user@example.org/home/user/repo 
git remote --verbose # list 
git reset v0.1 
git reset --soft HEAD~1 # commit undo 
git revert 123abc # commit undo 
git show commit:./path > path.old 
git stash drop stash@{0} # delete 
git stash list --date=local 
git stash list --patch # diff 
git stash pop 
git stash pop stash@{1} 
git stash save "message" 
git stash save --keep-index "message" 
git stash save --patch "message" # diff create 
git stash show 
git stash show --patch stash@{1} # diff 
git stash show --patch # diff 
git stash && git merge origin/master && git stash pop 
git stash && git pull && git stash pop 
git stash && git rebase --interactive HEAD~20 
git stash --keep-index # stage 
git stash --patch # diff create 
git status 
git submodule add --force git://github.com/l0b0/make-includes.git 
git submodule add --force git://github.com/l0b0/shell-includes.git 
git submodule update --init 
git subtree add --prefix=example git@github.com:l0b0/example.git master # merge repository history 
git tag v0.1 
git tag --delete name # local 
git -C "$(git rev-parse --show-toplevel)" checkout-index --all --prefix="../$(basename "$(git rev-parse --show-toplevel)")-copy/" # copy repository file 
git --git-dir=../other/.git format-patch --keep-subject -1 --stdout HEAD | git am --keep --3way # cherry-pick commit head repo 
git --version 
glabels & # graphics 
glc-capture --out recording.glc minecraft 
glc-play recording.glc 
glc-play recording.glc -a 1 -o recording.wav # audio 
glc-play recording.glc -y 1 -o - | mencoder -demuxer y4m - -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=3000 -audiofile recording.wav -oac mp3lame -o recording.avi # video encoding mp4 mpeg4 
glxgears # 3d graphics benchmark 
glxinfo 
gpg --allow-secret-key-import --import ~/secring.gpg 
gpg --armor --export 92126B54 # print public key text 
gpg --decrypt encrypted.asc 
gpg --decrypt | gpg --import # import key signature 
gpg --delete-keys 44E2703A 
gpg --edit-key 4DF0089E 
gpg --export --armor --output 92126B54.public.gpg.key 92126B54 # export public key file 
gpg --full-gen-key # create key 
gpg --gen-revoke --output 4DF0089E.rev 4DF0089E # generate revoke key certificate file 
gpg --import ~/pubring.gpg 
gpg --keyserver keys.gnupg.net --receive-keys 55D0C732 # import pgp signature 
gpg --list-public-keys --with-fingerprint # print public keys 
gpg --list-secret-keys --with-fingerprint # print private keys 
gpg --list-sigs 92126B54 # key signature 
gpg --send-key 92126B54 # upload 
gpg --verify ./*.sig # pgp signature 
gphoto2 --auto-detect # camera hardware 
gphoto2 --capture-image-and-download --frames 100 --interval 1 # time series capture usb camera 
gphoto2 --get-config /main/settings/artist # artist 
gphoto2 --get-config /main/settings/copyright # copyright 
gphoto2 --get-config /main/settings/ownername # camera owner 
gphoto2 --get-config=/main/status/batterylevel # battery camera 
gphoto2 --get-config=/main/status/lensname # lens camera 
gphoto2 --list-config | while read line; do echo $line; gphoto2 --get-config=$line; done # all camera config 
gphoto2 --list-files # camera list photo 
gphoto2 --port usb: --abilities # camera list abilities usb 
gphoto2 --set-config /main/settings/datetime=now # camera set time date 
gphoto2 --summary # camera hardware 
gradle tasks # list command 
grive # upload download sync files google drive 
grive --auth # authenticate google drive 
groups 
groups nobody 
groups "$USER" 
gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=unencrypted.pdf -c .setpdfwrite -f encrypted.pdf # pdf remove password 
gunzip example.gz 
gzip example.txt # compress 
hash # list program recent 
heimdall detect # list android 
heimdall download-pit --no-reboot --output my.pit && heimdall flash --pit my.pit --ABOOT aboot.mbn --BOOT boot.img --CACHE cache.img.ext4 --HIDDEN hidden.img.ext4 --QHEE hyp.mbn --MODEM modem.bin --APNHLOS NON-HLOS.bin --RECOVERY recovery.img --RPM rpm.mbn --SBL1 sbl1.mbn --SYSTEM system.img.ext4 --QSEE tz.mbn --verbose --no-reboot --resume # android flash mobile 
help alias 
help bg 
help bind 
help builtin 
help command 
help continue 
help declare 
help disown 
help echo 
help enable 
help exec 
help exit 
help fc 
help fg 
help help 
help history 
help jobs 
help kill 
help local 
help printf 
help shift 
help shopt 
help test 
help trap # signal 
help typeset 
help ulimit 
help umask 
help unset 
help until 
help wait 
help # list all 
help . # source 
help [r]ead # read 
help [s]et # set 
help [t]ime # time 
help [t]ype 
hiera --config ~/dev/root/hieradata/hiera.yaml fonts::packages ::osfamily=Archlinux 
hiera --help 
history | less 
hostid # host id hex 
hostname # internet network 
hostname --ip-address # internet network address dns 
hostname --short # internet network 
host example.org # dns lookup internet network ipv4 ipv6 
hp-setup # printer 
hp-wificonfig # printer 
htop # monitor processes system 
hugin & # panorama 2d photo stitch 
iconv --from-code=utf-8 --to-code=iso-8859-1 utf8.txt > latin1.txt # convert encoding 
idea & # intellij idea ide 
id "$USER" 
id # group user 
id --group 
id --user 
if [[ -r /proc/sys/kernel/ns_last_pid ]]; then while true; do while read; do if [[ "$REPLY" != "$old" ]]; then printf '%(%s)T %d\n' -1 "$REPLY"; old="$REPLY"; fi; done < /proc/sys/kernel/ns_last_pid; read -t 1 || true; done; fi # processes pids log 
imapfilter 
img2scad < test.png # openscad convert image 
indentect --help 
indentect --verbose < "$(which indentect)" 
indentect < "$(which indentect)" 
indent ./*.c 
infocmp -1 # list terminal 
info --raw-escapes --subnodes autoconf | less --raw-control-chars # help 
info --raw-escapes --subnodes automake | less --raw-control-chars # help 
info --raw-escapes --subnodes date | less --raw-control-chars # help 
info --raw-escapes --subnodes dd | less --raw-control-chars # help 
info --raw-escapes --subnodes find | less --raw-control-chars # help 
info --raw-escapes --subnodes ls | less --raw-control-chars # help 
info --raw-escapes --subnodes mktemp | less --raw-control-chars # help examples temporary files 
info --raw-escapes --subnodes sed | less --raw-control-chars # help 
inkscape & # editor svg 
iostat 
ipcalc 0.0.0.0/0 # network 
ipcalc 192.168.0.1/24 # network 
ipython 
ip addr show dev eth0 # ipv4 ipv6 device address 
ip addr show # ipv4 ipv6 network address 
ip link show down # network 
ip link show up # network 
ip route show dev eth0 # network 
ip -oneline -family inet addr show dev eth0 # ipv4 address 
iwconfig # wireless network configuration 
iwlist scanning 
java -Xmx4096M -Xms512M -jar ~/.minecraft/launcher.jar 
java -jar ~/schemaSpy.jar -dp /usr/share/java/mysql.jar -hq -t mysql -host localhost:3306 -db database -u user -p password -o ~/db && x-www-browser file://"$HOME"/db/index.html # mysql db visualization 
java -jar ~/schemaSpy.jar -dp /usr/share/java/postgresql.jar -hq -t pgsql -host localhost:5432 -db database -s public -u user -p password -o ~/db && x-www-browser file://"$HOME"/db/index.html # postgresql db visualization 
jhead -da2010:11:12/13:14:15-2005:01:01 ./*.jpg # adjust date time image 
jobs -l # list all background 
journalctl --boot --catalog --output=short-iso 
journalctl --catalog --follow 
journalctl --catalog --lines=10 
journalctl --catalog --since=today --output=short-iso SYSLOG_IDENTIFIER="xprofile-${USER}" # log user x profile 
journalctl --catalog --since=today --output=short-iso # systemd service log 
journalctl --catalog --since=today --unit=shadow.service 
jq . < *.json # json pretty-print 
json_xs -t null < example.json # verify json format 
json_xs < example.json # prettify json 
kdiff3 --output OUTFILE OURS THEIRS # merge 
keybase help 
keybase login 
keybase prove twitter 
killall process 
kill -0 "$!" # check last job background process pid 
kill -18 "$!" # resume last job background process pid 
kill -20 "$!" # suspend last job background process pid 
kill -INT $$ # signal 
kill -l # list signals 
komodo & 
ktrash --empty # kde trash empty delete 
kvm -boot d -m 512 -cdrom archlinux-*.iso # vm 
kvm -hda /tmp/my.img -cdrom boot.iso -boot d # vm 
lastlog # login users 
last | less # list all user login history 
la ~ 
la 
ldconfig --print-cache # list all libraries 
ldd "$(which bash)" 
less Makefile 
less "/usr/share/X11/locale/$(rg --max-count=1 "${LANG%.*}.UTF-8\$" /usr/share/X11/locale/locale.dir | cut --delimiter=/ --fields 1)/Compose" # keyboard shortcuts 
less --RAW-CONTROL-CHARS filename # color 
less --raw-control-chars typescript 
less /etc/issue 
less /etc/passwd # password 
less /proc/bus/input/devices 
less /sys/class/dmi/id/product_name 
less /sys/class/dmi/id/sys_vendor 
less /usr/share/doc/nethack-common/Guidebook.txt.gz # help 
less /var/log/Xorg.0.log 
less /var/log/auth.log 
less /var/log/dmesg 
less /var/log/kern.log 
less /var/log/messages 
libreoffice & 
livestreamer http://www.twitch.tv/foo best & # video web 
ll 
ln --symbolic -- target source 
localectl list-keymaps # keyboard layout list 
localectl list-x11-keymap-layouts # keyboard layout list 
localectl list-x11-keymap-models # keyboard list 
localectl list-x11-keymap-variants us # keyboard list 
locale 
locale --all-locales 
locate file 
lpstat -d # default printer cups 
lpstat -v # list all printers cups 
lsblk # list block device disk 
lsblk --noheadings --output UUID /dev/mapper/vg-swap # disk uuid 
lsb_release --all # linux version distro 
lscpu # hardware architecture processor 
lscpu | rg '^CPU op-mode' # detect cpu bit mode 
lshw 
lslocks # list file locks 
lsmod # kernel modules 
lsof # list open files 
lsof +D /path # list open file directory recursive 
lsof +L1 # list deleted files 
lsof +c 0 | rg process-name | wc --lines # count files 
lsof -i tcp # internet network 
lsof -i :22 # internet port network 
lsof -p $$ # files process 
lspci # list pci hardware 
lspci -v -s 00:1b.0 # pci device details 
lspci | rg --ignore-case audio # pci device 
lsusb # list usb hardware 
lsusb | rg --ignore-case cam 
ls -lt /var/log/ # sort time list 
ls -l --all # list 
ls -l --block-size 1 # list files size bytes 
ls -l --directory ./*/ # list directories 
ls -l --reverse # list 
ls --directory /proc/[^0-9]* # metadata 
lyx file.lyx 
l ~ 
l 
m4 --version # compile dev 
makepkg --printsrcinfo > .SRCINFO # package generate metadata 
makepkg --syncdeps --force # package build rebuild 
makepkg --syncdeps --install # package build tarball install 
make clean # dev 
make install # dev 
make test # dev 
make variables # dev 
make variable-SHELL # dev 
make # compile dev 
make --silent python-pep8 | cut --delimiter=: --fields=4- | rg --invert-match '^$' | sort | uniq --count | sort --numeric-sort 
man 1p mv # posix help 
man 1p sort # posix help 
man 1p xargs # posix help 
man 2 open # help 
man 3 exit # help 
man 3 printf # help format %d %f %s 
man 5 crontab # help 
man 5 passwd # help password 
man 5 sshd_config # help 
man 5 sudoers # help 
man 7z # help 
man 7 glob # help 
man Xorg # help 
man abcde # help 
man acpid # help 
man acpi_listen # help 
man ag # help 
man align_image_stack # help 
man alsamixer # help 
man amixer # help 
man aplay # help 
man appres # help 
man apropos # help 
man arandr # help 
man arch # help 
man arecord # help 
man arm # help 
man arp # help 
man ascii # help 
man ash # help 
man asn1parse # help 
man avahi-browse # help 
man avahi-daemon # help 
man avconv # help 
man awesome # help 
man awk # help 
man badblocks # help 
man basename # help 
man bashdb # help 
man bash # help 
man bc # help 
man blkid # help 
man borg # help 
man borg-create # help 
man borg-delete # help 
man borg-init # help 
man bsdtar # help 
man builtins # help bash 
man bunzip2 # help 
man bzip2 # help 
man cal # help 
man charsets # help 
man checkbashisms # help 
man chfn # help 
man chgrp # help 
man chmod # help 
man chown # help 
man chroot # help 
man clamd # help 
man clamscan # help 
man cloc # help 
man cmp # help 
man comm # help 
man convert # help 
man coredumpctl # help 
man cpio # help 
man cppcheck # help 
man cp # help 
man createdb # help postgresql 
man createuser # help 
man crond # help 
man crontab # help 
man cryptsetup # help 
man csplit # help 
man curl # help 
man cut # help 
man darktable # help 
man debhelper # help 
man delgroup # help 
man deluge # help 
man deluser # help 
man df # help 
man dhclient # help 
man dh_make # help 
man diffoscope # help 
man diff # help 
man digikam # help 
man dig # help 
man dirname # help 
man dmesg # help 
man dmidecode # help 
man dockerfile # help 
man dos2unix # help 
man dotty # help 
man dot # help 
man download-mibs # help 
man dropdb # help postgresql 
man dropuser # help 
man dsa # help 
man du # help 
man efibootmgr # help 
man eject # help 
man ent # help 
man envsubst # help 
man env # help 
man errno # help 
man etherape # help 
man exiftool # help 
man exiv2 # help 
man expand # help 
man expect # help 
man faillog # help 
man fakeroot # help 
man fceux # help 
man fc-cache # help 
man fc-list # help 
man fdisk # help 
man feh # help 
man ffmpeg # help 
man file # help 
man find # help 
man firefox # help 
man fmt # help 
man fold # help 
man fortune # help 
man free # help 
man freshclam # help 
man fsck # help 
man fswebcam # help 
man fuseiso # help 
man fusermount # help 
man gcc # help 
man gdb # help 
man genrsa # help 
man getconf # help 
man getent # help 
man gethostip # help 
man getopt # help 
man gfortran # help 
man gitk # help 
man gitstats # help 
man git # help 
man glabels # help 
man gnome-keyring-daemon # help 
man gpasswd # help 
man gpg # help 
man gphoto2 # help 
man graphviz # help 
man grive # help 
man groupadd # help 
man groupdel # help 
man groups # help 
man grpck # help 
man grub-mkconfig # help 
man gsmartcontrol # help 
man gs # help 
man gunzip # help 
man gvfs # help 
man hash # help 
man head # help 
man hexdump # help 
man hier # help 
man history # help 
man hostid # help 
man hostname # help 
man hosts # help 
man host # help 
man htop # help 
man hugin # help 
man hunspell # help 
man id # help 
man iftop # help 
man imake # help 
man imapfilter # help 
man imapfilter_config # help 
man indent # help 
man infocmp # help 
man initdb # help postgresql server database 
man inkscape # help 
man inotifywait # help 
man inotify # help 
man install # help 
man interfaces # help 
man ionice # help 
man iostat # help 
man iotop # help 
man ipcalc # help 
man iptables # help 
man ip # help 
man iwconfig # help 
man iwlist # help 
man java # help 
man jhead # help 
man join # help 
man journalctl # help 
man json_pp # help 
man json_xs # help 
man kdesu # help 
man keytool # help 
man kill # help 
man kismet # help 
man kvm # help 
man lastlog # help 
man last # help 
man ldconfig # help 
man ldd # help 
man ld # help 
man less # help 
man libreoffice # help 
man lighttpd # help 
man line # help 
man lintian # help 
man livestreamer # help 
man ln # help 
man localectl # help 
man locale # help 
man locate # help 
man logger # help 
man lpadmin # help 
man lpstat # help 
man lsblk # help 
man lsb_release # help 
man lscpu # help 
man lslocks # help 
man lsmod # help 
man lsof # help 
man lspci # help 
man lsusb # help 
man lynx # help 
man makepkg # help 
man make # help 
man man # help 
man mcomix # help 
man md5sum # help 
man mencoder # help 
man mkdir # help 
man mkfifo # help 
man mkfs.ext4 # help 
man mkfs.msdos # help 
man mktemp # help 
man modinfo # help 
man modprobe # help 
man mogrify # help 
man mount # help 
man mp3fs # help 
man mutt # help 
man mv # help 
man mysql # help 
man namcap # help 
man nautilus # help 
man ncal # help 
man ncdu # help 
man nc # help 
man netctl # help 
man netctl.profile # help 
man nethogs # help 
man netstat # help 
man newgrp # help 
man nfs # help 
man nice # help 
man nl # help 
man nmap # help 
man nm # help 
man node # help 
man notify-send # help 
man nproc # help 
man nslookup # help 
man ntpd # help 
man ntpq # help 
man objdump # help 
man od # help 
man openscad # help 
man openssl # help 
man pacman # help 
man padsp # help 
man paperconfig # help 
man passwd # help 
man paste # help 
man patch # help 
man pbuilder # help 
man pcmanfm # help 
man pdebuild # help 
man pdfimages # help 
man pdfinfo # help 
man pdftk # help 
man pep8 # help 
man perldoc # help 
man perlrun # help 
man perl # help 
man perl-rename # help 
man pgrep # help 
man pg_dumpall # help postgresql backup 
man pg_dump # help postgresql backup 
man php # help 
man pidof # help 
man ping # help 
man pkcs8 # help 
man pkcs12 # help 
man pkgbuild # help 
man pngcrush # help 
man postgres # help postgresql server 
man powertop # help 
man ppc386 # help 
man proc # help 
man psql # help 
man psql # help postgresql 
man pstree # help 
man ps # help 
man pts # help 
man pwck # help 
man python # help 
man qemu # help 
man quilt # help 
man readelf # help 
man readlink # help 
man reboot # help 
man recordmydesktop # help 
man redshift # help 
man replace # help 
man req # help 
man reset # help 
man resize # help 
man rm # help 
man route # help 
man rpm2cpio # help 
man rrdcreate # help 
man rrddump # help 
man rrdgraph # help 
man rrdinfo # help 
man rrdlast # help 
man rrdtool # help 
man rrdupdate # help 
man rsa # help 
man rsync # help 
man runlevel # help 
man sane-find-scanner # help 
man scanimage # help 
man scp # help 
man screen # help 
man script # help 
man scrot # help 
man seq # help 
man service # help 
man setkeycodes # help 
man setxkbmap # help 
man sha1sum # help 
man sha256sum # help 
man sha512sum # help 
man showkey # help 
man shred # help 
man shuf # help 
man shunit2 # help 
man shutdown # help 
man sh # help 
man signal # help 
man simple-scan # help 
man sipcalc # help 
man sleep # help 
man sloccount # help 
man slock # help 
man smartctl # help 
man snmpd # help 
man snmpget # help 
man snmptranslate # help 
man snmpwalk # help 
man sort # help 
man speaker-test # help 
man splint # help 
man sqlite3 # help 
man sshd # help 
man sshd_config # help 
man sshfs # help 
man ssh # help 
man ssh-add # help 
man ssh-agent # help 
man ssh-copy-id # help 
man ssh-keygen # help 
man ssh_config # help 
man stat # help 
man stdlib.h # help dev c header 
man strace # help 
man strfile # help 
man strftime # help format string date 
man stty # help 
man sudoers # help 
man sudo # help 
man su # help 
man sweethome3d # help 
man synclient # help 
man syndaemon # help 
man sysctl # help 
man systemctl # help 
man systemd # help 
man systemd-analyze # help 
man system-config-printer # help 
man s_client # help 
man tac # help 
man tail # help 
man tar # help 
man tcpdump # help 
man tee # help 
man tiff2pdf # help 
man tig # help 
man timedatectl # help 
man timeout # help 
man time # help 
man tkmib # help 
man tofrodos # help 
man top # help 
man torify # help 
man torsocks # help 
man tor # help 
man touch # help 
man tput # help 
man traceroute # help 
man trash # help 
man tr # help 
man tshark # help 
man tty # help 
man udevadm # help 
man ufw # help 
man umask # help 
man umount # help 
man uname # help 
man unetbootin # help 
man unexpand # help 
man unicode # help 
man uniname # help 
man uniq # help 
man unix2dos # help 
man unzip # help 
man updatedb # help 
man uptime # help 
man urandom # help 
man usb-devices # help 
man useradd # help 
man userdel # help 
man usermod # help 
man utf8 # help 
man valgrind # help 
man vim # help 
man vipw # help 
man virtualbox # help 
man visudo # help 
man vncpasswd # help 
man vncserver # help 
man vncviewer # help 
man watch # help 
man wavemon # help 
man wc # help 
man wdiff # help 
man wget # help 
man whatis # help 
man which # help 
man whoami # help 
man whois # help 
man who # help 
man wifi-radar # help 
man wireshark # help 
man wireshark-filter # help 
man wnpp-alert # help 
man wpa_passphrase # help 
man wpa_supplicant # help 
man wpa_supplicant.conf # help 
man w # help 
man x509 # help 
man xargs # help 
man xbacklight # help 
man xclip # help 
man xdg-desktop-menu # help 
man xdotool # help 
man xev # help 
man xinput # help 
man xkill # help 
man xmkmf # help 
man xmllint # help 
man xmodmap # help 
man xprop # help 
man xrandr # help 
man xrdb # help 
man xset # help 
man xsltproc # help 
man xss-lock # help 
man xterm # help 
man xwininfo # help 
man xxd # help 
man xz # help 
man yes # help 
man youtube-dl # help 
man zip # help 
man <(help2man help2man) # help 
mcomix & 
md5sum file # print checksum 
md5sum --check *.md5 # verify checksum 
meld original mine & # diff 
meld other original mine & # diff 
meld . & # diff 
meld <(ssh example.org cat /etc/hosts) <(ssh example2.org cat /etc/hosts) # diff 
meld <(wget --output-document - http://git.gnome.org/browse/meld/plain/.gitignore?id=250066249e06241e3bfd3863c1a233fb45f40a12) <(wget --output-document - http://git.gnome.org/browse/meld/plain/.gitignore) # diff 
mencoder -fps 10 -nosound -ovc copy timelapse.mp4 -o timelapse-slow.mp4 # video 
mian ~/.minecraft/saves/New\ World 
minecraft & 
mkaurball # arch linux aur package build 
mkaurball -h # help 
mkdir mp3 
mkdir -- example # create directory 
mkfifo pipe1 pipe2 
mkgithub ~/dev/root # create git repository 
mkgithub --configure --https --verbose --user l0b0 
mkgithub --configure --ssh --verbose --user l0b0 
mkgithub --help 
modinfo i915 # kernel module 
mogrify -crop 2316x1303+0+0 ./*.jpg 
mogrify -format jpg ./*.CR2 # convert 
mountpoint /home 
mount # list all 
mount --no-mtab --options remount,defaults /dev/sda1 / 
mount-image ./*.iso 
mp3fs -obitrate=256 ~/music/ ~/mp3 # mount 
mutt 
mutt -d 5 
mutt -i <(git request-pull HEAD https://github.com/l0b0/project) -s "Pull request" address@example.org # email 
mutt -vv 
mutt -v 
mutt-ldap.pl name # ldap search 
mv file{.orig,} 
namcap --info PKGBUILD # package test 
namcap --info *.pkg.tar.xz # package test 
ncal -3bM 
ncdu -x # find large directory file 
nc -l 12345 & netstat --tcp --all | rg :12345 && kill "$!" # test network listen port 
neato -O -Tsvg ./*.dot 
netctl list # network profile 
netctl-auto current # network profile 
nethack-qt & 
netstat 
netstat --all # internet connections sockets 
netstat --tcp --udp --listening --numeric --program 
newgrp group # change default group 
nice --adjustment 19 ionice --class 3 du | sort --numeric-sort --key 1 # priority cpu io 
nl ~/.bashrc # number lines 
nmap -T Aggressive -A -v 192.168.0.1 
nmap -p 22 --open 192.168.0.0/24 # search list ssh hosts network 
nmap -v -sP 192.168.0.0/24 
nm libfoo.so | rg '^ *U ' # dev undefined object 
node # javascript 
node -v 
notify-send "summary" "body" 
npm install --local # package.json node.js 
nproc # print processor count 
nslookup example.org # dns internet lookup network 
ntpq -p # query list peers 
openscad ~/dev/crumbling-beaker/beaker.scad & 
openssl asn1parse -in ~/.ssh/id_?sa # decode key 
openssl genrsa -des3 -out private.pem 4096 # create des3 encrypted private rsa key hex 
openssl pkcs12 -export -inkey name.key.pem -in name.crt.pem -out name.p12 # merge certificate key 
openssl pkcs12 -info -in name.p12 -noout # list verify 
openssl req -new -key private.pem -out request.pem # create x509 certificate signing request hex 
openssl req -text -in name.csr.pem # list certificate request properties 
openssl rsa -text -in name.key.pem # list key properties 
openssl s_client -connect example.com:443 -status <<< '' # get certificate connect host ssl https 
openssl x509 -req -days 1 -in request.pem -signkey private.pem -out certificate.pem # create self-signed x509 certificate hex 
openssl x509 -text -in name.crt.pem -noout # list x509 certificate properties 
openstack flavor list --help 
openstack flavor list --public # print list type machine hardware 
openstack floating ip list # address network 
openstack floating ip list --help 
openstack image list --help 
openstack image list --public # os 
openstack keypair list # ssh 
openstack keypair list --help 
openstack network list # subnet 
openstack network list --help 
opentyrian "--net-player-name=${USER}" --net-player-number 1 --net=192.168.0.1 # tyrian game network 
pacman --query bash # package version 
pacman --query # list all installed packages 
pacman --query --explicit # list user installed package 
pacman --query --foreign --quiet # list aur package 
pacman --query --list bash # list all package files 
pacman --query --owns "$(which bash)" # file package owner 
pacman --sync --info bash # package info 
pacman --sync --search bash # search packages 
pacmd set-default-sink SINK_NAME # pulseaudio output 
pactree bash # installed package dependencies 
pactree --reverse bash # installed package reverse dependencies 
pactree --reverse --sync bash # all package reverse dependencies 
padsp java ./my.jar # pulseaudio oss wrapper 
pandoc --standalone README.md > README.html # convert markdown markup 
parse-edid < ./edid # monitor resolution 
passwd # password user 
patch --strip 0 < patch.diff 
pavucontrol & # pulseaudio volume 
pcmanfm & 
pdfimages -j ./*.pdf . 
pdfinfo file.pdf 
pep8 setup.py 
pep8 --help 
pep8-python2 setup.py 
pep8-python2 --help 
perlbrew switch 
perldoc file.pl # help 
perldoc -f kill # help function 
perl -MFile::stat -MData::Dumper -le '$f = stat shift; print Dumper($f);' PATH # print file metadata 
perl -c file.pl # check syntax 
perl -d -e 1 # interactive console 
perl -ne 'print join("\n", split(/:/));print("\n");' input # split join 
perl -pe 'chomp if eof' input > output # remove newline eof 
perl --version 
perl-rename --dry-run 's/([^-]+)-.*-([^-]+)/$1-$2/' ./*.xml | rg --only-matching ' renamed as .*' | sort | uniq --repeated # safe 
perl-rename --dry-run --verbose 's#/([^/]+)$#/prefix $1#' ./* # prefix 
perl-rename --dry-run --verbose 's/(\d{4})(\d{2})(\d{2})/$1-$2-$3/' ./* # date 
perl-rename --dry-run --verbose 's/.*/sprintf "%04d.jpg", ++$main::Mad/e' ./*.jpg # video 
perl-rename --dry-run --verbose 's/\.txt$/\.html/' ./*.txt # extension suffix 
pgrep -P $$ # child processes pids 
pgrep -u root cron 
php --interactive 
php --syntax-check index.php # verify 
php --version 
pidof bash | wc --words # count processes 
pidof init # process pid 
pid=$! # process pid 
ping example.org 
ping -c 4 example.org 
pip2 freeze > python-requirements.txt # save python dependencies 
pip freeze > python-requirements.txt # save python dependencies 
pip help 
pip help install 
pip install --requirement python-requirements.txt 
pngcrush -brute -d target ./*.png # graphics compress 
pod2text file.pl # perl documentation 
podchecker file.pl # perl documentation verify 
printf "${USER}%.0s" {1..5} # repeat string 
printf "\0" | uniname -bcepu # 1 nul escape quote 
printf $"\0" | uniname -bcepu # 1 nul escape quote 
printf $'\0' | wc --chars # 0 escape quote 
printf %s "$IFS" | od --format x1 # string character byte convert hex dump posix 
printf %s "$IFS" | xxd -groupsize 1 # string character byte convert hex dump 
printf %s "${IFS:0:1}" 
printf %s $'--$`!*@\a\b\E\f\r\t\v\\\'"\360\240\202\211 \n' | uniname -bcp # test unicode 
printf %s $'--$`!*@\a\b\E\f\r\t\v\\\'"\360\240\202\211 \n' | xclip; cmp --verbose <(printf %s $'--$`!*@\a\b\E\f\r\t\v\\\'"\360\240\202\211 \n') <(xclip -out) # clipboard copy test 
printf '%q\n' "$IFS" # escape bash 
printf '%q\n' "$PS1" # escape bash 
printf '\0' | uniname -bcepu # 1 nul escape quote 
printf \0 | uniname -bcepu # 1 zero escape quote 
printf \\0 | uniname -bcepu # 1 nul escape quote 
prove 
prove --recurse 
pry 
psql --host localhost --port 15432 --dbname postgres --username postgres <<< "COPY(SELECT datname FROM pg_database WHERE datistemplate = FALSE) TO STDOUT;" # forwarding list all postgresql network 
psql --version # postgresql 
ps afux | less -S # processes list all tree tty 
ps uw -p $$ # process single pid 
ps -U root -u root fu | less -S # processes list user tree 
ps -eo user= | sort | uniq --count | sort --reverse --numeric-sort # processes users 
ps -p $$ o ppid= # parent pid 
ps --pid "$(find -L /proc/[0-9]*/exe ! -type l | cut --delimiter '/' --fields '3' | paste --serial --delimiters ',')" # non-kernel processes 
ps --pid $$ # current shell 
puppet apply --noop --modulepath modules manifests/site.pp # no-op test configuration 
puppet describe --short user 
puppet help 
puppet module install --modulepath vendor puppetlabs/stdlib 
puppet module upgrade --modulepath vendor puppetlabs/stdlib 
puppet resource user 
puppet resource user root 
puppet resource --help 
puppet resource --types 
pwd # current directory 
pychecker --help 
pycodestyle --max-line-length=120 # python lint style check file 
pyflakes --help 
pylint --help 
python -m py_compile script.py # verify code script 
python -m timeit -s 'text = "sample string"; char = "g"' 'char in text' # timing benchmark 
python -m venv virtualenv 
qemu-img create -f qcow2 /tmp/my.img 10G 
qgit --all . & # gui 
qpdf --empty --pages first.pdf 1-2,4-z -- target.pdf # remove page 
qpdf --empty --pages first.pdf second.pdf -- target.pdf # concatenate files 
qr2scad < ~/dev/qr2scad/tests/example_big.png > big.scad 
qt5ct & 
qtpfsgui & # hdr photo editor 
readelf --all "$(which readelf)" # executable binary 
readlink /proc/$$/fd/0 # symlink source pipe file descriptor pseudo terminal 
read -r var 
read < "/path" 
read <<< "$text" 
recordmydesktop --windowid "$(xdotool selectwindow)" --no-cursor --full-shots --fps 25 --no-wm-check --no-frame -o ~/out.ogv 
reset # clear log remove terminal text 
rg PATTERN # search 
rg ":$USER\$" /etc/group 
rg "^$USER:" /etc/passwd # password 
rg 'GREEK SMALL LETTER PI' "/usr/share/X11/locale/$(rg --max-count=1 "${LANG%.*}.UTF-8\$" /usr/share/X11/locale/locale.dir | cut --delimiter=/ --fields 1)/Compose" # unicode character 
rg '(\b|^)COMMAND\b.* .*help' ~/.bash_history # search 
rg --files-with-matches --null --regexp PATTERN ./* 2>/dev/null | tr --complement --delete '\000' | wc --chars # count occurrences pattern 
rg --files-with-matches --null --regexp PATTERN ./* | xargs -0 rg --files-with-matches --regexp OTHER # search and patterns 
rg --invert-match --file ~/dev/vcard/sorts/Gmail.re < ~/contacts.vcf | rg --invert-match --regexp '^ ' 
rg --no-filename --only-matching PATTERN . | wc --lines # sum count search 
rg --passthru --regexp "^$USER:" /etc/passwd # context highlight 
rmdir ./* 
rm --recursive ~/.local/share/Trash/ && mkdir --parent ~/.local/share/Trash/{files,info,metadata} # clean kde trash bug 
rm -- example.txt 
ronn --help 
ronn --roff README.markdown # man 
route 
rsync --archive --human-readable --progress --verbose --remove-source-files source host:target # network transfer move 
rsync --rsh='ssh -p 2020 -i ~/.ssh/host.pem' --archive --human-readable --progress --verbose host:/path /target # network transfer 
ruby -c test.rb # check verify syntax 
runlevel # kernel 
rustup default stable # rust install toolchain 
rustup update # rust package update 
sandbox="$(mktemp --directory)" 
sane-find-scanner # list device 
sass-convert all.s{a,c}ss 
scanimage --list-devices # scanner 
schemaspy2svg ~/db 
schemaspy2svg --help 
scp example.org:/home/jdoe/example.txt . 
scp -P 22222 example.org:/home/jdoe/example.txt . 
scp -i ~/.ssh/server.pem example.txt user@example.org: # alternative key 
scp -r file example.org:~ 
screen 
screen -S compile-project 
screen -dRR name # resume 
screen -dRR # resume 
screen -list 
script --quiet --command "$SHELL" 
scrot --delay 5 # screenshot 
scrot --select # screenshot area selection 
sed '9d' file # delete line one-indexed 
sed '/pattern/r./input.txt' example.txt # insert merge file pattern 
sed '/^$/d' file # delete empty lines 
sed '/^[[:space:]]*$/d' file # delete whitespace line 
sed --quiet '/^START$/,/END^$/{/^START$/d;/^END$/d;p;}' <<< $'START\nfirst\nEND\nSTART\nsecond\nEND' # extract delimiter lines 
setxkbmap -device $(which-keyboard) -layout us -variant dvorak-alt-intl -option compose:caps # keyboard layout config 
setxkbmap -layout us # keyboard layout qwerty us reset 
setxkbmap -print # keyboard settings 
setxkbmap -verbose | awk -F '+' '/^symbols:/ {print $2}' # keyboard layout settings 
set +o noclobber # file error 
set +o nounset # variable error 
set +o pipefail # error 
set +o xtrace # disable 
set -o noclobber # file error 
set -o nounset # variable error 
set -o pipefail # error 
set -o xtrace # enable 
sha1sum file # print checksum 
sha1sum --check *.sha1 # verify checksum 
sha256sum file # print checksum 
sha256sum --check *.sha256 # verify checksum 
sha512sum file # print checksum 
sha512sum --check *.sha512 # verify checksum 
shellcheck *.sh # lint 
shopt nullglob # option get 
shopt # options 
shopt -s dotglob # option set .* 
shopt -s extglob # option set ?(a|b) *(a|b) +(a|b) @(a|b) !(a|b) 
shopt -s globstar # option set ** 
shopt -s globstar && wc --lines ./**/**.ext # count recursive lines 
shopt -s nullglob # option set * 
shopt -u nullglob # option unset * 
showkey # keyboard console 
shred --remove PATH # overwrite delete file 
shuf --input-range 0-1 --head-count 1 # random number range 
sh 
simple-scan & 
sipcalc 0.0.0.0/0 
sipcalc 192.168.0.1/24 
sleep 1m 
sleep 5s && xprop # x window properties fullscreen 
slideshow -f http://github.com/geraldb/slideshow-s6-blank/raw/master/s6blank.txt 
slideshow -t s6blank presentation.md 
sloccount . 
snmpget -v 2c -c public localhost .1.3.6.1.2.1.1.1.0 
snmptranslate -Of .1.3.6.1.2.1.1 # OID 
snmptranslate -On .iso.org.dod.internet.mgmt.mib-2.system # symbol 
snmptranslate -Tl # list all mib oids 
snmpwalk -v 2c -c public localhost # all 
snmpwalk -v 2c -c public localhost .1.3.6.1.2.1.1 # system 
sort --output .gitignore .gitignore 
sort --unique --output result.txt source.txt 
source ~/.bashrc 
source virtualenv/bin/activate 
speaker-test --channels 2 
speaker-test --device plughw:2,3 # test audio device 
splint foo.c 
sqlite3 -line db/development.sqlite3 "select * from table_name" 
sqliteman name.sqlite # gui sqlite db 
sqliteman --help 
sshfs server: "/run/media/${USER}/server" # sftp 
sshfs -o port=22222 android:/storage/emulated/0 "/run/media/${USER}/phone" # sftp android 
ssh example.org 
ssh example.org uptime 
ssh example.org < example.sh # execute shell script remote 
ssh -A example.org # forward agent key 
ssh -L 5902:localhost:5901 example.org # local port forwarding vnc 
ssh -L 8080:localhost:8081 proxy.example.com -t ssh -D 8081 endpoint.example.com # ssh network proxy 
ssh -L 15432:localhost:5432 example.org # local port forwarding postgresql 
ssh -R 9000:localhost:9000 example.org 
ssh -Y example.org # trusted x11 forwarding 
ssh -i ~/.ssh/server.pem user@example.org # alternative key 
ssh -p 22222 example.org 
ssh -t localhost sudo -u nobody env # tty 
ssh -vvv example.org 
ssh-add -L # list key parameter 
ssh-add -l # list key fingerprint 
ssh-copy-id example.org 
ssh-keygen -f ~"/.ssh/known_hosts" -R '[1.2.3.4]:1234' # remove public key 
ssh-keygen -l -f /etc/ssh/ssh_host_ecdsa_key.pub # host id ecdsa fingerprint 
ssh-keygen -l -f /etc/ssh/ssh_host_rsa_key # host id rsa fingerprint 
ssh-keygen -y -f ~/.ssh/id_rsa > ~/.ssh/id_rsa.pub # generate public key 
stat --format %i / # inode 
stat --format '%A %U %G %s %y %n' ./* # list permissions user group file 
stat --printf '%A %U %G %s %y %n\0' ./* # list permissions user group file nul 
strace -Cf bash -lc true # count calls profile summary 
strace -fe open ./example.sh 2>&1 >/dev/null | rg --only-matching '^(\[pid\s+[0-9]*\] )?open\("[^"]+' | rg --only-matching '".*' | cut --characters 2- | sort --unique # script dependencies 
strings "$(which strings)" 
stty sane # restore terminal state 
stty --all # terminal settings 
sudo ~/dev/tilde/scripts/arch_linux_system_upgrade.sh 
sudo Xorg :1 -configure 
sudo badblocks -sv /dev/sda # check disk health 
sudo blkid -o list 
sudo chfn -f "My Name" "$USER" # full name 
sudo chgrp --recursive nogroup -- example.txt # set group file 
sudo chown nobody "$sandbox" 
sudo chown "$USER":"$(printf %q "$(groups | awk '{print $1}')")" "/run/media/${USER}/mountpoint" 
sudo chroot /var/jail/"$USER" su --login "$USER" # jail 
sudo clamscan --quiet --recursive / # antivirus scan 
sudo cpanm Net::LDAP # install ldap 
sudo crontab -e # edit 
sudo cryptsetup luksDump /dev/DISK # list property luks 
sudo cryptsetup status lvm # encryption disk 
sudo delgroup example # delete group 
sudo deluser example # delete user 
sudo dmidecode --string system-product-name 
sudo dmidecode --string system-serial-number 
sudo dmidecode --type 1 
sudo dmidecode --type system 
sudo dmidecode | less 
sudo download-mibs 
sudo efibootmgr # list uefi boot config 
sudo extundelete --restore-all /dev/sdx1 
sudo faillog # log summary user 
sudo fdisk -l # list all disks 
sudo fdisk /dev/sdx # partition disk 
sudo file --special-files /dev/sdX # detect disk type 
sudo file /boot/vmlinuz-linux | rg --fixed-strings --word-regexp --quiet "$(uname -r)" || echo 'You should reboot to use the new kernel' 
sudo freshclam # antivirus update 
sudo fsck -t exfat /dev/sdx # check exfat filesystem 
sudo gpasswd --add "$USER" group # user add group 
sudo groupadd example # add create group 
sudo groupdel example # delete remove group 
sudo grpck --sort 
sudo grub-install /dev/sda # fix boot mbr 
sudo gsmartcontrol 
sudo hdparm -I /dev/sda # harddisk hardware properties 
sudo iftop # bandwidth network interface monitor 
sudo iftop -i wlp1s0 # bandwidth network interface monitor wireless 
sudo iotop # i/o storage repeat 
sudo iotop --batch --iter 1 # i/o storage 
sudo iotop --pid=$$ # i/o process 
sudo ip6tables --list-rules # list all ipv6 firewall rules network commands 
sudo iptables --list-rules # list all ipv4 firewall rules network commands 
sudo ip addr add 1.2.3.4/24 dev eth0 # network address 
sudo ip addr del 1.2.3.4/24 dev eth0 # network address delete 
sudo ip link set eth0 down # network disable device 
sudo ip link set eth0 up # network enable device 
sudo ip route add default via 1.2.3.4 dev eth0 
sudo ip route del default via 1.2.3.4 dev eth0 
sudo kismet # wireless network monitor 
sudo lastb | less # list all bad failed user login history 
sudo ldconfig 
sudo lightdm-gtk-greeter-settings # login config 
sudo ln --force --symbolic /usr/share/zoneinfo/Europe/London /etc/localtime # set system timezone 
sudo ln --symbolic "/run/media/${USER}/windows/Windows/Fonts" /usr/share/fonts/WindowsFonts # enable windows fonts 
sudo loadkeys dvorak # keyboard layout vt terminal 
sudo localectl --no-convert set-keymap dvorak # x11 console vt keyboard layout 
sudo localectl --no-convert set-x11-keymap us '' dvorak-alt-intl 
sudo lpadmin -d printername # set default printer cups 
sudo lshw | less 
sudo mandb # update apropos database manual 
sudo mkdir "/media/mountpoint" 
sudo mkfs.ext4 /dev/sdx1 # format ext4 partition 
sudo mkfs.msdos -F 32 /dev/sdxy # format fat32 partition 
sudo modprobe microcode # add insert kernel module 
sudo mount --all 
sudo mount --options remount,ro /dev/sda1 # readonly restore 
sudo mount --options remount,rw /dev/sda1 # writeable 
sudo mount --types tmpfs --options size=1m tmpfs -- "$(mktemp --directory --tmpdir -- ramdisk.XXXXXXXXXX)" # create ramdisk partition 
sudo nethogs wlan0 # network monitor 
sudo netstat --listening --tcp --numeric-ports --program | rg '(^[A-Z]|^([^[:space:]]+[[:space:]]+){3}[^[:space:]]+:22\b)' # internet connections server search 
sudo openvpn --config /etc/openvpn/client/config.ovpn 
sudo paccache --dryrun # pacman package cache clean files delete 
sudo pacman --files --refresh --search PATH # find package 
sudo pacman --needed --refresh --sync PACKAGE # install package 
sudo pacman --recursive --remove $(pacman --deps --query --quiet --unrequired) # clean remove orphan package dependencies 
sudo pacman --sync --clean # remove cache temporary file 
sudo pacman --upgrade ./*.pkg.tar.xz # install 
sudo paperconfig --paper a4 # set print size 
sudo passwd --delete root # disable account user 
sudo pip2 install --upgrade img2scad 
sudo pip install --upgrade https://github.com/l0b0/qr2scad/tarball/master 
sudo pip install --upgrade pip # python 
sudo powertop # power monitoring configuration 
sudo puppet apply --modulepath modules:vendor --detailed-exitcodes --hiera_config=hieradata/hiera.yaml --execute 'include module_name' 
sudo pwck --sort 
sudo reboot # restart 
sudo sed --in-place 's/^mibs/#mibs/' /etc/snmp/snmp.conf # disable 
sudo sed --in-place 's/^#LEDS=/LEDS=/' /etc/kbd/config # enable capslock boot 
sudo sh -c 'cryptsetup open --type luks /dev/sda encrypted && mount /dev/mapper/encrypted /media/encrypted' # mount encrypted disk 
sudo sh -c 'dhclient -r wlan0 && dhclient wlan0' # request refresh dhcp ip 
sudo sh -c 'ip addr add 192.168.0.99/16 dev wlan0 && dhclient wlan0' # set ip address network 
sudo sh -c 'pacman --sync --needed --refresh jenkins && systemctl start jenkins.service && systemctl enable jenkins.service' # jenkins ci service 
sudo sh -c 'systemctl start acpid.service && systemctl enable acpid.service' # service 
sudo sh -c 'systemctl start avahi-daemon.service && systemctl enable avahi-daemon.service' # printer discovery service 
sudo sh -c 'systemctl start cronie.service && systemctl enable cronie.service' # cron service 
sudo sh -c 'systemctl start dkms.service && systemctl enable dkms.service' # dynamic kernel module support 
sudo sh -c 'tail --follow name --retry --lines 0 $(find /var/log/ -type f -exec file -- {} + | rg ":.*(ASCII|UTF)" | cut --delimiter : --field 1)' # text 
sudo sh -c 'umount /media/encrypted && cryptsetup close encrypted' # disk unmount 
sudo sh -c 'vim /etc/default/grub && grub-mkconfig --output=/boot/grub/grub.cfg' # edit boot kernel parameters 
sudo sh -c 'vim /etc/mkinitcpio.conf && mkinitcpio -p linux' # edit generate ramdisk 
sudo sh -c 'wpa_supplicant -d -Dwext -i wlan0 -c /etc/wpa_supplicant.conf 2>&1 >> /var/log/wpa_supplicant.log' # wireless network 
sudo smartctl --attributes /dev/sda # harddisk smart 
sudo sshfs user@host:/path /run/mount/host 
sudo strace -p 123 # process 
sudo sysctl --all # list kernel parameters 
sudo systemctl daemon-reload # reload service file 
sudo systemctl restart dhcpcd.service 
sudo system-config-printer 
sudo tar --directory /opt --extract --gzip --file ideaIU-*.tar.gz && /opt/idea-IU-*/bin/idea.sh # install intellij idea ide 
sudo tcpdump tcp # network debug log packets protocol 
sudo tcpdump # network debug log packets 
sudo tcpdump 'tcp[tcpflags] & (tcp-syn|tcp-fin) != 0 and not src and dst net 127.0.0.1' # network debug log packets internet 
sudo traceroute -4 -p 1234 -T example.org # ipv4 port tcp network 
sudo ufw status 
sudo umount ~/mp3 
sudo umount "/media/mountpoint" 
sudo updatedb 
sudo update-grub 
sudo useradd example # add create user 
sudo userdel example # delete remove user 
sudo usermod --append --groups example "$USER" # modify user add group 
sudo usermod --groups "$(id --name --groups | sed 's/ \?group \?/ /g;s/ /,/g;s/^,//;s/,$//')" "$USER" # remove group 
sudo vigr # edit groups users members 
sudo vim /etc/default/keyboard 
sudo vim /etc/fstab # mount points 
sudo vim /etc/hosts # network 
sudo vim /etc/network/interfaces 
sudo vim /etc/postgresql/*/main/pg_hba.conf 
sudo vim /etc/rc.local 
sudo vim /etc/resolv.conf # dns network 
sudo vipw # edit password users 
sudo visudo # permissions security 
sudo wavemon 
sudo wifi-menu --obscure 
sudo wifi-radar # wifi diagnostic 
sudo -u postgres createuser --pwprompt username 
sudo -u postgres dropuser username 
sudo -u postgres pg_dumpall > backup.sql # postgresql backup 
sudo -u postgres pg_dump postgres > backup.sql # postgresql backup 
sudo -u postgres psql --dbname my_db <<< "\dt my_schema.*" # database schema tables list all postgresql 
sudo -u postgres psql --dbname postgres # postgresql login interactive 
sudo -u postgres psql --dbname postgres < dump.sql # postgresql import 
sudo -u postgres psql --single-transaction --file backup.sql # restore postgresql 
sudo -u postgres psql --variable name="Robert'); DROP TABLE Students; --" <<< "COPY(SELECT :'name') TO STDOUT;" # test escape literal postgresql 
sudo -u postgres psql <<< "COPY(SELECT datname FROM pg_database WHERE datistemplate = FALSE) TO STDOUT;" # list all postgresql 
sudo -u postgres psql <<< "COPY(SELECT extract(epoch from now())::Integer) TO STDOUT;" # unix integer timestamp 
sudo -u postgres psql <<< "SELECT * FROM pg_stat_activity;" # list sessions processes postgresql 
sudo -u postgres psql <<< "\dn" # schemas list all postgresql 
sudo -u postgres psql <<< "\dt" # public schema tables list all postgresql 
sudo -u postgres psql <<< "\du" # users list all postgresql 
sudo -u postgres psql <<< "\encoding" # postgresql db encoding 
sudo -u tor arm # anonymizing relay monitor service tor 
sudo --list # show user capabilities 
sudo /etc/init.d/postgresql reload 
sum <<< '2 2' 
su --login "$USER" # substitute user login 
sweethome3d & 
synclient SHMConfig=1 -m 100 | tee synaptics.log # synaptics touchpad debug 
systemctl is-enabled cronie.service 
systemctl list-units # services 
systemctl status display-manager.service 
systemctl status # service status 
systemctl # service status 
systemctl --failed # service status 
systemctl --user restart pulseaudio.service 
systemd-analyze blame # list boot service time 
systemd-analyze critical-chain # boot process dependency time 
systemd-analyze dot | dot -Tsvg > startup-dependencies.svg # 2d startup process dependencies 
systemd-analyze plot > startup-timing.svg # time startup process 
systemd-analyze # boot time kernel user 
tail --follow=name --retry --lines 0 /var/log/wpa_supplicant.log 
tar --create --gzip --exclude-vcs --directory ~/dev --file ~/tilde.tar.gz tilde # compress gzip 
tar --extract --gzip --file ~/tilde.tar.gz # decompress gzip 
tar --extract --gzip --transform 's#.*/##' --file ~/tilde.tar.gz # decompress flatten gzip 
tar --list --gzip --file ~/tilde.tar.gz 
telnet localhost 1234 # network 
tiff2pdf -o PDF_FILE TIFF_FILE # convert 
tig 
timedatectl status 
timeout 1 sleep 2 
time bash -lc true # benchmark startup login shell 
time make test 
tkmib & 
tks -c ~/admin/timesheets/$(date +%Y-%m-%d).tks # timekeeping work commit 
tks --list=week # timekeeping list work 
todos -- file # convert newline 
top 
top -c # command line 
top -p "$(pgrep -d ',' bash)" 
torify curl https://check.torproject.org # privacy network tor check 
torsocks --shell # privacy tor interactive shell 
tor-browser-en & 
tor-browser-en --help 
touch file # create empty file 
touch --date='2001-02-03 04:05:06.789' file # set access modification time 
tput colors 
traceroute example.org 
traps="$(trap)" # signal 
trap # signal 
tshark -D # list network interface 
tshark -G fields | rg '\tdns\t' | cut --fields 2-4,6- # list field dns 
tshark -Y 'http.request and http contains "application/ocsp-request"' -T fields -e http.host tcp port 80 # network ocsp request 
tshark -n -T fields -e dns.qry.name src port 53 # network dns 
tty 
txt2cloud 
txt2cloud --min 3 < "$(which txt2cloud)" > cloud.xhtml 
type -a true 
udevadm info --export-db 
udevadm monitor --environment kernel # live events 
ulimit -a 
ulimit -c unlimited 
umask 
umask -S # symbolic 
umount /mnt/foo # unmount device drive 
umount-image ./*.iso 
uname --all 
uname --kernel-name --kernel-release --kernel-version --machine --processor --hardware-platform --operating-system # anonymized 
unetbootin 
unetbootin & 
unexpand --tabs=4 example.txt # convert space tab 
unix2dos contacts.vcf # newline convert 
unset variable_or_function 
unset -f function 
unset -v variable 
unzip file.zip # decompress zip 
unzip -l file.zip # list zip 
uptime 
usb-devices # list usb device 
vagrant box list # show all 
vagrant destroy # delete vm 
vagrant halt # stop shutdown vm 
vagrant package --base archlinux # create vm 
vagrant plugin install vagrant-reload 
vagrant provision # vm 
vagrant provision --provision-with puppet 
vagrant ssh # login vm 
vagrant status 
vagrant up # start vm 
vagrant --help 
vainfo 
valgrind foo # check memory binary 
vcard ~/contacts/*.vcf 
vim ~/admin/timesheets/$(date +%Y-%m-%d).tks 
vim -c "setfiletype sh" example.txt 
virtualbox & 
vlc http://www.lynnepublishing.com/surround/www_lynnemusic_com_surround_test.ac3 # audio 
vlc --ffmpeg-hw --verbose 2 file.1080p.x264.mkv # video h.264 
vlc --fullscreen --deinterlace -1 --deinterlace-mode yadif2x --video-filter postproc --postproc-q 6 --audio-language ja --sub-language en --verbose 2 --advanced dvdsimple:///dev/dvd & 
vlc --fullscreen --deinterlace -1 --deinterlace-mode yadif2x --video-filter postproc --postproc-q 6 --verbose 2 --advanced ./*.avi 
vlc --full-help | less 
vlc --spdif http://www.lynnepublishing.com/surround/www_lynnemusic_com_surround_test.ac3 # audio 
vmware 
vncpasswd 
vncserver -kill :1 # stop service 
vncserver -list # all 
vncserver -localhost -geometry "$(xrandr | sed --quiet 's/.*current \([0-9]*\) x \([0-9]*\).*/\1x\2/p')" # start service remote desktop 
vncviewer :1 # local desktop 
vncviewer :2 # remote desktop 
wait # process pid 
watch --color --differences -- git diff --color=always # change 
wc --lines -- example.txt # line count 
wdiff -w "$(tput bold && tput setaf 1)" -x "$(tput sgr0)" -y "$(tput bold && tput setaf 2)" -z "$(tput sgr0)" path1 path2 # color word diff 
weechat # irc client 
wget --output-document - http://user:password@host/function?id=foo 2>service.log | json_pp # web service 
wget --server-response --output-document=/dev/null http://example.org/ # web header 
whatis mv # exact help man 
which --all bash # list executable file path 
while IFS= read -r -d '' -u 9; do if [[ "$(file --brief --special-files --mime-type -- "$REPLY")" = text/* ]]; then sed --in-place 's/[ \t]\+\(\r\?\)$/\1/;$a\' -- "$REPLY"; else echo "Skipping $REPLY" >&2; fi; done 9< <(find . \( -type d -regex '^.*/\.git$' -prune -false \) -o -type f -exec printf '%s\0' {} +) # text whitespace eol eof 
while IFS= read -r -d '' -u 9; do printf '%q\n' "${REPLY#* }"; done 9< <(find . -printf '%T@' -exec printf ' %s\0' {} \; | sort --general-numeric-sort --zero-terminated) # sort file list modification date 
while IFS= read -r -d '' -u 9; do sed --in-place '/\x0/{q;}; s/[ \t]\+\(\r\?\)$/\1/;$a\' -- "$REPLY"; done 9< <(find . \( -type d -regex '^.*/\.git$' -prune -false \) -o -type f -exec printf '%s\0' {} +) # file whitespace eol eof 
while IFS= read -r -u 9; do if [[ "$REPLY" =~ .*\.dot$ ]]; then dot -O -Tsvg "$REPLY"; fi; done 9< <(inotifywait --event close_write --format %f --monitor .) 
while read; do xdotool windowactivate "$REPLY"; xdotool key F5; done < <(xdotool search --name "Mozilla Firefox") # refresh 
while sleep 1; do (shopt -s nullglob; events_dir="${HOME}/.events"; for path in "$events_dir"/*; do notify-send --icon="${HOME}/dev/graphics/${USER}.png" "$(basename "$path")" "$(cat "$path")" && rm "$path"; done;) done 
whoami # user id 
whois example.org # dns lookup internet network 
who # logins users 
wifi-menu --help 
wine --version 
wireshark & 
wnpp-alert # Debian packaging 
worktime --end="$(date --date=Thursday +%Y-%m-%d)" > ~/week.xhtml && x-www-browser ~/week.xhtml 
w 
xbacklight -set 0 
xbacklight -set 100 
xclip filename.txt # mouse clipboard copy 
xclip -out # mouse clipboard print stdout 
xclip -selection clipboard filename.txt # keyboard clipboard copy 
xclip -selection clipboard -out # keyboard clipboard print stdout 
xev # x event keyboard mouse input 
xinput # all keyboard device list 
xinput --list $(which-keyboard) # keyboard device info 
xinput --list-props $(which-keyboard) # keyboard device properties 
xkill # kill x window 
xmllint --shell input.xml # interactive shell xpath xml 
xmodmap ~/.Xmodmap # read configuration keyboard mouse 
xmodmap -pm # list keyboard modifiers 
xmodmap -pp # list mouse buttons 
xprop # x window properties 
xprop | rg --color=never "^(WM_CLASS|WM_NAME)" 
xrandr --display :0 --output LVDS1 --mode 1366x768 # reset resolution graphics desktop 
xrandr --verbose # graphics hardware 
xrdb -load ~/.Xresources # replace x settings 
xrdb -merge ~/.Xresources # merge x settings 
xrdb -query # list 
xset q # list settings x monitor 
xsltproc --output file.xml ~/dev/xml/filter/filter.xslt file.xml # filter xml xslt replace 
xsltproc --output file.xml file.xslt file.xml # transform xslt xml replace 
xwininfo -id "$(xdotool selectwindow)" 
xwininfo -id "$(xprop -root | awk '/_NET_ACTIVE_WINDOW\(WINDOW\)/{print $NF}')" # current window 
xxd "$(which xxd)" | head --lines=1 # binary hex 
yes -- example # repeat string 
yes | dh_make --single && printf %s $'*.EX\n*.ex\n' > debian/.gitignore && git add debian 
youtube-dl --all-subs --output "${HOME}/download/%(upload_date)s-%(title)s-%(id)s.%(ext)s" --continue --format best --prefer-free-formats '' # download video files 
youtube-dl --continue --embed-thumbnail --format 140 --output "${HOME}/download/%(upload_date)s-%(title)s-%(id)s.%(ext)s" '' # download audio files thumbnail 
zip --update file.zip input # add file compress zip 
zless /proc/config.gz # kernel configuration parameter 
 make --directory ~/dev/tilde clean 
 vim ~/.bash_history # shell 
(echo 'ctrl_interface=/var/run/wpa_supplicant' && wpa_passphrase ssid passphrase) | sudo tee /etc/wpa_supplicant.conf # configuration wireless network wpa supplicant 
(path=$'--$`!*@\a\b\E\f\r\t\v\\\'"\360\240\202\211 \n'; diff <(ssh foo 'cat -- '"$(printf %q "$path")") <(ssh bar 'cat -- '"$(printf %q "$path")")) # remote 
(printf '%s\n' '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">' '<html xmlns="http://www.w3.org/1999/xhtml">' '<head>' '<title/>' '</head>' '<body>' && cat in.xhtml && printf '%s\n' '</body>' '</html>') > out.xhtml 
(set -o posix; set) # list all options 
(set -o posix; set) | rg --only-matching '^COMP[^=]*' 
(yes a & yes b) | cat >/dev/null & ~/dev/pspipe/fdpid.sh 0 "$!" # process pid pipe stdin 
/usr/local/JDiveLog/bin/jdivelog 
[[ "$(git diff --staged | rg --count ^-)" -eq "$(git diff --staged | rg --count ^+)" ]] # verify sort