use strict;
use warnings;
use Data::Dumper;
my $file1 = 'file1';
my $file2 = 'file2';
#reading file1 into a hash
my %hash=();
open (my $fh,'<',$file2) or die $!;
while(my $line=<$fh>)
{
chomp $line;
$hash{line}=1;
print Dumper %hash;
}
close $fh;

#reading file2 line by line
open (my $fh2,'<',$file1) or die $!;
while (my $row = <$fh2>) {
chomp $row;

my @fields = split(/\|/, $row);
print $row if exists $hash{$fields[0]};
}
close $fh2; ~

In reply to Re^2: Filtering Output from two files by Anonymous Monk
in thread Filtering Output from two files by vighneshmufc

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