[ILUG] semaphore arrays

[Paul Jakma]

On Tue, 10 Dec 2002, kevin lyda wrote:

> someone gave this example a few messages back:
> 
>     ipcs -s | grep apache | awk '{ print $2 }' | xargs ipcrm sem
> 
> you could cull it a bit:

anything that pipes a grep to awk obviously needs culling.

>     ipcs -s | awk '/apache/{print $2}' | xargs ipcsrm sem

if you keep the first pipe the above can be simplified to:

ipcs -s | awk '$0 ~ /apache/ { system("ipcsrm sem " $2)}'

(the explicit $0 ~ /../ is nicer)

> or you could use that goofy awk thingy paulj just posted.
> 
> ob.comment.to.paulj: freak.

here, have the 'useless use of xargs' award. :)

> kevin

regards,
-- 
Paul Jakma	Sys Admin	Alphyra
	paulj at alphyra.ie
Warning: /never/ send email to spam at dishone.st or trap at dishone.st