I'm pretty sure you can't do this but maybe someone has some weird hack.

Is there a way to get comments (#blahblah) to show up in ps output?

My problem is that I have a script -- let's call it "myscript.sh" -- that is not very descriptive.

I'd love to be able to do something like:

 ./myscript.sh #Running on

and have ps output the comment line, instead of just saying "myscript.sh"

The only way I can think of hacking around it would be to place the comment in a variable, grep out "myscript.sh" PID and then read that var from /proc/PID/environ. But that's very ugly, and requires root.

  • 2
    Does myscript.sh accept command line arguments? If not, /myscript.sh Running on should work. If yes, can you edit it to handle a special argument too? If yes, /myscript.sh -c 'Running on' should work, just instruct it to not fail when seeing -c arguments. – manatwork Dec 27 '12 at 15:21
  • 1
    You don't need to be running as root to access your own processes. ps (at least the one from the procps package) has also option the e which displays the environment right away, you can also parse output of that (unfortunately the environment is not separated from the command name, which is lame). – peterph Dec 27 '12 at 17:09

With zsh, you could do something like:

#! /bin/zsh -
(($+ARG0_SET)) || ARG0_SET= ARGV0="#Running on" exec zsh "$0" "$@"
ps -f -p "$$"

Which when run gives:

~$ ./a
chazelas 20157  8822  0 21:51 pts/1    00:00:00 #Running on ./a

The ksh93 equivalent would be:

#! /bin/ksh93 -
((${#ARG0_SET})) || ARG0_SET=yes exec -a "#Running on" ksh93 "$0" "$@"
ps -f -p "$$"

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.