oh wise monks! may a feeble noob ask for wisdom!
I have some very inefficent code, it takes way to long to run and i just know there is a better way to do it! but my skills are lacking! I have 2 files that share a string. I want to match a string from file A in File B and add a new string from File A to end of the line in File B where the common string was matched. I know this is bad but thats why asked for help! 
#!/usr/bin/perl -w
chomp($phi = `ls slk`);
chomp($phi2 = `ls *.csv`);
open(OUT,"> /home/Aug18.csv") or die "Cannot open output file;
open(READDATA, "< /home/$phi") or die "Cannot Open file;
my $stuff;
my %h = ();
while ($stuff = <READDATA>)
{
        if ($stuff =~ /(\d\d\d\d\w\d?)\s+(\w*)/){
                $port = $1;
                $lsn = $2;
                $h{$port} = $lsn;
}
}
close READDATA;
open(READDATA2, "< /home/$phi2") or die "Cannot Open file.;
my $stuff2;
        while ($stuff2 = <READDATA2>){
        while (($port2, $lsn2) = each %h){
        if ($stuff2 =~/$port2/){
        chomp($stuff2);
        print OUT "$stuff2,$lsn2\n"}
}
}

[download]

It works for now but my god its slow! Thanks for any advice!

In reply to 2 files 1 output by Anonymous Monk

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