First and foremost:
use strict;
use warnings; # or -w
Additionally, check the return of open (or die "Error: $!";), close INPUT, and verify that wzzip isn't the one waiting for 'press any key'...
Also, verify that you really want $zipfile = <INPUT> (returns a line from the file -- if this is the first such invocation, the first line). Depending on your implementation, you may want to use something like:
@zipfiles = <INPUT>;
foreach my $zipfile (@zipfiles) {
# unzip $zipfile
}
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