I am at my wits end with this PERL script. Running on AIX. I am Processing a large directory every night. It accumulates around 1 Million files each night, half of which are ".txt" files that I need to process. Each ".txt" file is pipe delimited and only contains 20 records - Record #6 is the one that contains the info I need in order to determine which directory to move the file to (In this case the file would be moved to "/out/4". Example Record: A|CHNL_ID|4 (Third party software is creating these files and they didn't think of including the channel in the file name). As of now this script is processing at a rate of 80,000 files per hour. Is there any recommendations on how I could speed this up? 

opendir(DIR, $dir) or die "$!\n";
while ( defined( my $txtFile = readdir DIR ) ) {
    next if( $txtFile !~ /.txt$/ );
    $cnt++;

    local $/;
    open my $fh, '<', $txtFile or die $!, $/;
    my $data  = <$fh>;
    my ($channel) =  $data =~ /A\|CHNL_ID\|(\d+)/i;
    close($fh);

    move ($txtFile, "$outDir/$channel") or die $!, $/;
}
closedir(DIR);

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In reply to Perl Program to efficiently process 500000 small files in a Directory (AIX) by DenairPete

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