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Re: non numeric data

by blue_cowdawg (Monsignor)
on Jun 24, 2013 at 12:53 UTC ( #1040428=note: print w/replies, xml ) Need Help??


in reply to non numeric data

      but somehow if loop block is visited even if data is numeric

First off you are not doing an apples to apples comparison in your conditional. Secondly you are trying to do pattern matching in a dubious fashion. Check out the following:

$ cat torres09.pl #!/usr/bin/perl -w use strict; while(my $line=<DATA>){ chomp $line; if ( $line =~ m/^\d+$/){ printf "%s\n",$line; } } exit(0); __END__ 0123 0444 A123 $ perl torres09.pl 0123 0444


Peter L. Berghold -- Unix Professional
Peter -at- Berghold -dot- Net; AOL IM redcowdawg Yahoo IM: blue_cowdawg

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