open (BADIPS), "< $workdir/bad_ips" or die "Couldn't open file: $!";

[download]

If that's the code you're really using (it's different to your OP), try adding use warnings; after use strict;. That usage of open does something you really don't want (hint: it isn't trying to open bad_ips).

Try: 

open BADIPS, "<", "$workdir/bad_ips" or die "Couldn't open file: $!";

[download]

instead.

You should also check the contents of bad_ips. It could be full of newlines.

In reply to Re^3: script outputs nothing/nada by FunkyMonk
in thread script outputs nothing/nada by bluethundr

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