Hello all,
I am trying to capture the output from a program but all I get is a null value. Here is my code and the results:
use Digest::MD5 qw(md5_hex);
use warnings;
$checksum = 0;

$filename = "compress_logs.pl";
$fingerprint = md5_hex($filename);
print "$fingerprint Perl Gen\n";
$checksum = `md5sum compress_logs.pl`;
print "$checksum: Linux Gen\n";

[root@zzz me]# /usr/bin/perl test.pl
b2b0b5ab494414bbbbe6625e247de247 Perl Gen
933be8d9a84230aa8162932102dd0bf0  compress_logs.pl
: Linux Gen

[download]
As you can see the md5sum program does execute but $checksum is set to a null value. I have also tried the pwd command with the same result. Any ideas?
You may have also noticed the the checksums shown above do not match. They are both calculated using MD5. Does anyone know why this is?
Kelly

Edit: g0n - repaired tags

In reply to Problem returning values from external programs by Kellstr

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