[Patch] ps command returns 1 if PID not found
Ryan Dortmans
ryandort.cygwin@gmail.com
Fri Dec 18 00:10:00 GMT 2009
>Sorry but returning 1 doesn't make sense and it isn't the way that linux
>works. It actually returns 0.
dortmans> /bin/ps -p 4549 ; echo "Return val: $?"
PID TTY TIME CMD
4549 ? 00:00:00 sshd
Return val: 0
dortmans> /bin/ps -p 1111 ; echo "Return val: $?"
PID TTY TIME CMD
Return val: 1
dortmans> /bin/ps --version
procps version 3.2.3
I get these results in Solaris Unix and Red Hat Linux. The above
commands were executed on a Red Hat Linux system.
Cheers,
Ryan Dortmans
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