Bash_mon.sh

#! /bin/bash
# unset any variable which system may be using
#by Mohamed Gamal
unset RST os architecture kernelrelease internalip externalip nameserver loadaverage
# The While loop and Getopts to check for options Arguments added to command like # Bash_mon.sh  -v  #bash_mon.sh -i
#if i is the input it will make iopt=1 , if v vopt=1 else error . 
while getopts iv name
do
        case $name in
          i)iopt=1;;
          v)vopt=1;;
          *)echo "Invalid arg";;
        esac
done
# here we will install the script to Binaries folder /usr/bin and exit . 
if [[ ! -z $iopt ]]
then
{
wd=$(pwd)
# we will check if the script is a shortcut or the original file 
# and we will write the output in /tmp/scriptname
basename "$(test -L "$0" && readlink "$0" || echo "$0")" > /tmp/scriptname
scriptname=$(echo -e -n $wd/ && cat /tmp/scriptname)
#if Script installed we will echo Congrats, else Failed will appear :P 
su -c "cp $scriptname /usr/bin/monitor" root && echo "Congratulation ! Script Installed, now run monitor Command" || echo "Installation failed"
}
fi
# here we will show some info about the AUTHOR ME :D :D and exit 
if [[ ! -z $vopt ]]
then
{
echo -e "Linux_monitor version 0.1\nDesigned by Mem-0o"
}
fi
# here we will process if no arguments supplied as # of argument = 0 .
if [[ $# -eq 0 ]]
then
{


# Define Variable RST 
# Reset The colours on Shell undo Green Colour to the default font/colour options 
RST=$(tput sgr0)

# Check if connected to Internet or not
ping -c 1 google.com &> /dev/null && echo -e '\E[32m'"Internet: $RST Connected" || echo -e '\E[32m'"Internet: $RST Disconnected"

# Check OS Type
os=$(uname -o)
echo -e '\E[32m'"Operating System Type :" $RST $os

# Check OS Release Version and Name
###################################
OS=`uname -s`
REV=`uname -r`
MACH=`uname -m`

GetVersionFromFile()
{
    VERSION=`cat $1 | tr "\n" ' ' | sed s/.*VERSION.*=\ // `
}

if [ "${OS}" = "SunOS" ] ; then
    OS=Solaris
    ARCH=`uname -p`
    OSSTR="${OS} ${REV}(${ARCH} `uname -v`)"
elif [ "${OS}" = "AIX" ] ; then
    OSSTR="${OS} `oslevel` (`oslevel -r`)"
elif [ "${OS}" = "Linux" ] ; then
    KERNEL=`uname -r`
    if [ -f /etc/redhat-release ] ; then
        DIST='RedHat'
        PSUEDONAME=`cat /etc/redhat-release | sed s/.*\(// | sed s/\)//`
        REV=`cat /etc/redhat-release | sed s/.*release\ // | sed s/\ .*//`
    elif [ -f /etc/SuSE-release ] ; then
        DIST=`cat /etc/SuSE-release | tr "\n" ' '| sed s/VERSION.*//`
        REV=`cat /etc/SuSE-release | tr "\n" ' ' | sed s/.*=\ //`
    elif [ -f /etc/mandrake-release ] ; then
        DIST='Mandrake'
        PSUEDONAME=`cat /etc/mandrake-release | sed s/.*\(// | sed s/\)//`
        REV=`cat /etc/mandrake-release | sed s/.*release\ // | sed s/\ .*//`
    elif [ -f /etc/os-release ]; then
	DIST=`awk -F "PRETTY_NAME=" '{print $2}' /etc/os-release | tr -d '\n"'`
    elif [ -f /etc/debian_version ] ; then
        DIST="Debian `cat /etc/debian_version`"
        REV=""

    fi
    if ${OSSTR} [ -f /etc/UnitedLinux-release ] ; then
        DIST="${DIST}[`cat /etc/UnitedLinux-release | tr "\n" ' ' | sed s/VERSION.*//`]"
    fi

    OSSTR="${OS} ${DIST} ${REV}(${PSUEDONAME} ${KERNEL} ${MACH})"

fi

##################################
#cat /etc/os-release | grep 'NAME\|VERSION' | grep -v 'VERSION_ID' | grep -v 'PRETTY_NAME' > /tmp/osrelease
#echo -n -e '\E[32m'"OS Name :" $RST  && cat /tmp/osrelease | grep -v "VERSION" | grep -v CPE_NAME | cut -f2 -d\"
#echo -n -e '\E[32m'"OS Version :" $RST && cat /tmp/osrelease | grep -v "NAME" | grep -v CT_VERSION | cut -f2 -d\"
echo -e '\E[32m'"OS Version :" $RST $OSSTR 
# Check Architecture
architecture=$(uname -m)
echo -e '\E[32m'"Architecture :" $RST $architecture

# Check Kernel Release
kernelrelease=$(uname -r)
echo -e '\E[32m'"Kernel Release :" $RST $kernelrelease

# Check hostname
echo -e '\E[32m'"Hostname :" $RST $HOSTNAME

# Check Internal IP
internalip=$(hostname -I)
echo -e '\E[32m'"Internal IP :" $RST $internalip

# Check External IP
externalip=$(curl -s ipecho.net/plain;echo)
echo -e '\E[32m'"External IP : $RST "$externalip

# Check DNS
nameservers=$(cat /etc/resolv.conf | sed '1 d' | awk '{print $2}')
echo -e '\E[32m'"Name Servers :" $RST $nameservers 

# Check Logged In Users
who>/tmp/who
echo -e '\E[32m'"Logged In users :" $RST && cat /tmp/who 

# Check RAM and SWAP Usages
free -h | grep -v + > /tmp/ramcache
echo -e '\E[32m'"Ram Usages :" $RST
cat /tmp/ramcache | grep -v "Swap"
echo -e '\E[32m'"Swap Usages :" $RST
cat /tmp/ramcache | grep -v "Mem"

# Check Disk Usages
df -h| grep 'Filesystem\|/dev/sda*' > /tmp/diskusage
echo -e '\E[32m'"Disk Usages :" $RST 
cat /tmp/diskusage

# Check Load Average
loadaverage=$(top -n 1 -b | grep "load average:" | awk '{print $10 $11 $12}')
echo -e '\E[32m'"Load Average :" $RST $loadaverage

# Check System Uptime
tecuptime=$(uptime | awk '{print $3,$4}' | cut -f1 -d,)
echo -e '\E[32m'"System Uptime Days/(HH:MM) :" $RST $tecuptime

# Unset Variables
unset RST os architecture kernelrelease internalip externalip nameserver loadaverage

# Remove Temporary Files
rm /tmp/who /tmp/ramcache /tmp/diskusage
}
fi
shift $(($OPTIND -1))