Give this a try: 
$ cat ./crc32.pl
#!/usr/bin/env perl

use strict;
use warnings;
use String::CRC32;

die "Usage: crc32.pl file\n" unless @ARGV;

for my $file (@ARGV) {
    open my $fh, '<', $file or die "can not open file $file: $!";
    my $crc = crc32($fh);
    close $fh;
    printf "%08x %s (%08x)\n", $crc, $file, (0xffff_ffff - $crc);
}

$ ls *.txt
data.txt  file.txt  golf.txt
$ ./crc32.pl *.txt
d13bcbe6 data.txt (2ec43419)
0b8c331a file.txt (f473cce5)
5f20086b golf.txt (a0dff794)
$

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In reply to Re: Checksum Help by toolic
in thread Checksum Help by TeamViterbi

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