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Re: Get Filename using perl

by Rhys (Pilgrim)
on Sep 09, 2004 at 02:23 UTC ( #389538=note: print w/replies, xml ) Need Help??

in reply to Get Filename using perl

The Perl grep returns the matching contents from the file, not the file name, so your code should be more like:

opendir (DIR, "$responseDir") or die "could not open $responseDir :$!\ +n"; foreach $file ( readdir(DIR) ) { open THISFILE, "$responseDir/$file"; my @newFile = grep { /$commonField/ } <THISFILE>; if ( @newFile ) { # If there were any contents, this is our file. $matchedfile = $file; close THISFILE; last; } close THISFILE; } closedir(DIR); print "Matched file $matchedfile.\n";

I tested a slight variation of this. You'll definitely want to re-test this, but I think it works.


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[1nickt]: marioroy Yes, I am using it with MCE, as is Discipulus I believe. I was trying to work out how to make a cpanfile that would be smart enough to know which deps to require.
[1nickt]: See this code. (I expected to simply eval loading threads as a check, but weirdness happened with Perlbrew so it's a grep of -V ...)
[choroba]: Config might be better than grepping -V
[Corion]: Also see Config::V, which is less of that hackery, or that hackery hidden in a module ;)
[1nickt]: The problem was with Perlbrew
[Corion]: Whoops - Config::Perl::V
[1nickt]: I found that when using Perlbrew as recommended, with cpanminus in the system perl lib, such tests were failing to detect the data about the perl that was the install destination.

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