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( [id://3333]=superdoc: print w/replies, xml ) Need Help??

Just for fun, this version detects which of the two files is actually missing:

use strict; use warnings; my %file; while(<DATA>) { chomp; if( !/^lab(\d+)_set(\d+)\.txt/ ) { warn "$_ doesn't belong here!"; next; } $file{$1} += $2; } for( keys %file ) { print "lab$_ ", $file{$_} == 3 ? 'matched' : "is missing lab${_}_set" . ( 3 - $file{$_} ) . ".txt", "\n"; } __DATA__ lab1_set1.txt lab1_set2.txt lab2_set1.txt lab2_set2.txt lab3_set2.txt lab100_set1.txt lab100_set2.txt

...produces...

lab1 matched lab3 is missing lab3_set1.txt lab100 matched lab2 matched

Dave


In reply to Re: How to compare elements within an array by davido
in thread How to compare elements within an array by doubleqq

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