[svlug] Running a command n times simutaneously
Seth David Schoen
schoen at loyalty.org
Tue Apr 25 14:29:43 PDT 2006
Seth David Schoen writes:
> Scott Hess writes:
> > Wow, never heard of seq. Cool. Even more portable and less obvious
> > alternative that doesn't use such a special-purpose tool:
> > yes | head -10 | egrep -n y | cut -d: -f
> yes | sed '=;10Q;D'
Sorry, I'm wrong to suggest that that's portable. Non-GNU sed doesn't
understand "Q", but replacing it with "q" gives a spurious output line
at the end.
yes | sed =\;10q | grep -v y
is still shorter than the previous portable alternative.
Seth David Schoen <schoen at loyalty.org> | This is a new focus for the security
http://www.loyalty.org/~schoen/ | community. The actual user of the PC
http://vitanuova.loyalty.org/ | [...] is the enemy.
| -- David Aucsmith, IDF 1999
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