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Re^2: Detecting an undefined hash keyby JavaFan (Canon) |
| on Oct 01, 2008 at 11:36 UTC ( [id://714782]=note: print w/replies, xml ) | Need Help?? |
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Nothing special going here. But with 'getopt ("st")', you declare -s and -t to take an argument. So, if you just provide -s, the argument is undef. If you provide -s -t, -t is the argument of -s.
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Seekers of Perl Wisdom
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