On Tue, 04 Dec 2012 14:50:38 -0600
Martin McCormick wrote:
> Robert Bonomi writes:
> > 'man 2 kill' tells all.
>
> I believe that is the first or second time I have used
> Section 2. I appreciate the reminder. It looks like ps -p ###
> >/dev/null appears to do what I need without producin
Robert Bonomi writes:
> 'man 2 kill' tells all.
I believe that is the first or second time I have used
Section 2. I appreciate the reminder. It looks like ps -p ###
>/dev/null appears to do what I need without producing output
ps -p 54321 >/dev/null && date ran the date command if there
Robert Bonomi writes:
> 'man 2 kill' tells all.
I believe that is the first or second time I have used
Section 2. I appreciate the reminder. It looks like ps -p ###
>/dev/null appears to do what I need without producing output
ps -p 54321 >/dev/null && date ran the date command if there
> Subject: Safe Way to Tell if Process is Running
> Date: Tue, 04 Dec 2012 13:39:41 -0600
> From: Martin McCormick
>
> About 20 years ago, I saw some code in which you
> verified whether or not a process was running by giving it a
> kill -0 command. If the process
About 20 years ago, I saw some code in which you
verified whether or not a process was running by giving it a
kill -0 command. If the process was running, nothing happened to
it but your kill -0 command exited with a 0 status. If there was
no process with that PID, the kill command exited n
