I and others have tried before to help you.
#!/usr/bin/perl
use strict;
use warnings;
use Inline::Files;
my %col2file1; #use better name!
while (<FILE1>)
{
next if /^\s*$/; #skip blank lines
my $col2 = (split /\|/, $_)[1];
$col2 =~ s/^\s*//; #delete leading spaces
$col2 =~ s/\s*$//; #delete trailing spaces
$col2file1{$col2} = 1;
}
while (<FILE2>)
{
next if /^\s*$/; #skip blank lines
my $col3 = (split /\|/,$_)[2];
$col3 =~ s/^\s*//; #delete leading spaces
$col3 =~ s/\s*$//; #delete trailing spaces
print if $col2file1{$col3};
}
#prints: "AE|A|D|| "
__FILE1__
L| D
L| C
L| C
__FILE2__
AE|A|D||
A|A|P| |
A|A|P| |
A|A|P| |
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