I've seen lots of info on how to properly get command-line _options_ (-f, --foo, etc), but not _parameters_. My script expects an e-mail address on the command-line, which I split by the '@':
#!/usr/bin/perl -w

use strict;

my ($username, $domain) = split(/@/, shift);
if (! ($username && $dominio)) {
  $0 =~ s|.*/||;
  die("Usage: $0 <username\@domain>\n");
}

# do actual stuff

[download]
However, if I call the script with no parameters, I get 2 "Use of uninitialized value" before the "Usage: ...". Is there some better way to check my commandline parameters? TIA

In reply to Validating command-line _parameters_ (not options) by dserodio

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