Error on micromamba install on Windows Git Bash

[kylekeppler]

Troubleshooting docs

• My problem is not solved in the Troubleshooting docs

How did you install Mamba?

Micromamba

Search tried in issue tracker

ps unknown option

Latest version of Mamba

• My problem is not solved with the latest version

Tried in Conda?

Not applicable

Describe your issue

Error using recommended micromamba install script on Windows Git Bash:

"${SHELL}" <(curl -L micro.mamba.pm/install.sh)
ps: unknown option -- o

Indeed, the ps installed in my Git Bash does not have -o:

The installation continues and appears to work though.

$ ps -h
Usage: ps [-aefls] [-u UID] [-p PID]

Report process status

 -a, --all       show processes of all users
 -e, --everyone  show processes of all users
 -f, --full      show process uids, ppids
 -h, --help      output usage information and exit
 -l, --long      show process uids, ppids, pgids, winpids
 -p, --process   show information for specified PID
 -s, --summary   show process summary
 -u, --user      list processes owned by UID
 -V, --version   output version information and exit
 -W, --windows   show windows as well as cygwin processes

With no options, ps outputs the long format by default

mamba info / micromamba info

No response

Logs

No response

environment.yml

No response

~/.condarc

No response

[AntoinePrv]

Hi @kylekeppler, it must come from this line:
https://github.com/mamba-org/micromamba-releases/blob/7225fdb6de390fe6b69c9cfc7fa4a5447c58d81a/install.sh#L6C1-L6C36

Since this is optional, maybe we can add a fallback like so $(ps -o comm $PPID 2>/dev/null || echo "failed" | tail -1).
What does ps -o comm $PPID 2>/dev/null || echo "failed" | tail -1 produce for you? what about echo ${SHELL}?

[ifrh]

I am not the original questioner, but perhaps this output will be helpful.

In Windows Git Bash (MinGW64) the ps command has no option -o, where in Linux there is one.

Linux output

at@d7b:~$ ps --help

Usage:
 ps [options]

 Try 'ps --help <simple|list|output|threads|misc|all>'
  or 'ps --help <s|l|o|t|m|a>'
 for additional help text.

For more details see ps(1).

Windows Git Bash output

i@T14 MINGW64 ~/AppData/Roaming/Microsoft/Windows/Start Menu/Programs
$ ps --help
Usage: ps [-aefls] [-u UID] [-p PID]

Report process status

 -a, --all       show processes of all users
 -e, --everyone  show processes of all users
 -f, --full      show process uids, ppids
 -h, --help      output usage information and exit
 -l, --long      show process uids, ppids, pgids, winpids
 -p, --process   show information for specified PID
 -s, --summary   show process summary
 -u, --user      list processes owned by UID
 -V, --version   output version information and exit
 -W, --windows   show windows as well as cygwin processes

With no options, ps outputs the long format by default



i@T14 MINGW64 ~/AppData/Roaming/Microsoft/Windows/Start Menu/Programs
$ echo $PPID
1792

i@T14 MINGW64 ~/AppData/Roaming/Microsoft/Windows/Start Menu/Programs
$ ps -o comm $PPID 2>/dev/null || echo "failed" | tail -1
failed

i@T14 MINGW64 ~/AppData/Roaming/Microsoft/Windows/Start Menu/Programs
$ ps
      PID    PPID    PGID     WINPID   TTY         UID    STIME COMMAND
     1793    1792    1793       8872  pty0      197610 23:47:21 /usr/bin/bash
     1823    1793    1823      12428  pty0      197610 23:49:10 /usr/bin/ps
     1792       1    1792       3764  ?         197610 23:47:21 /usr/bin/mintty

i@T14 MINGW64 ~/AppData/Roaming/Microsoft/Windows/Start Menu/Programs
$ echo ${SHELL}
/usr/bin/bash