Hi Citromatik, First of all Thanks a lot. Actually I have some a fet of similar columns to compare from a database. So, was thinking of first importing them into text files and use PERL script to compare them. I was working on memory intensive code which I'm working on. Iam new to PERL but starting to LIKE it. So I want to dig more into it. So here's what I thought:- (Its not working actually) use strict; my $file1 = 'C:\Documents and Settings\u470239\My Documents\AC1.txt'; my $file2 = 'C:\Documents and Settings\u470239\My Documents\AC2.txt'; open(F1, $file1) or die "Error opening file $!\n"; open(F2, $file2) or die "Error opening file $!\n"; my @file1 = <F1>; my @file2 = <F2>; for my $i (0..$#file1) { for my $j (0..$#file2) { if ($file1$i == $file2$j) { my $i++; my $j++; } elsif ($file1$i>$file2$j) { print "$file1$i"; my $i++; } elsif ($file1$i<$file2$j) { print "$file2$j"; my $j++; } } }

In reply to Re^2: Comparing each element of Array A to Array B by lali
in thread Comparing each element of Array A to Array B by lali

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