Hi, Bob, :)
This is so great!
On Thu, 13 Sep 2001, Bob Showalter wrote:
> > -----Original Message-----
> > In a directory there exist *.c and *.out files. Here *.out is
> > created for every *.c file. I need to check whether .out is
> > generated for all the .c file. How to achive this.
> perl -e '-f $_ || print "Missing $_\n" for map {/^(.*)\.c$/; "$1.out"}
> @ARGV' *.c
Cool! I had never heard of the 'map' function before (sounds
stdlib'ish). New (to me) stuff! Guess that's why I'm on the
"beginners" list. :)
After I read the perlfunc page on 'map', I discovered you could
rewrite the above even more minimally:
perl -e 'map { /^(.*)\.c$/; -f "$1.out" || print "Missing $1.out\n"; } @ARGV;' *.c
Man, perl has so many different ways to say the same thing...
Thanks!
---Jason
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