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[Andraž 'ruskie' Levstik <ruskie AT codemages.net>]

:2009-04-15T23:14:Ethan Grammatikidis:

> There is an additional problem. Applying grep to the output of ps is
> likely to match on the grep command itself, thus:
> $ ps x|grep irssi
>  5703 pts/4    S+    11:20 irssi
> 30307 pts/16   S+     0:00 grep irssi
> 
> Does the -A option prevent this? The man page gives no indication, and
> frankly I can't see how ps can guarantee not to include grep in it's
> list. It's something of a race condition, all depending on how fast ps
> and grep respectively start up. OTOH I can't get it to break with -A.

Easy to workaround:
$ ps x|grep "irss[i]"
14835 pts/1    Ss+  249:12 irssi

Of course this would still fail if there is a custom script running
about it. Anyway why isn't this using a call to telinit run $script
stop?

-- 
Andraž ruskie Levstik
Source Mage GNU/Linux Games/Xorg grimoire guru
Geek/Hacker/Tinker

Don't forget: the future is now. It's just not widely distributed yet.