Wow, wow and double wow

It would seem that s and t are indeed strange in Getopt::Std.

There is much for my simple mind to digest in all these replies and I thank you all for the tips and nudges on exists and Data::Dumper

I did think that, if one expected to use -t <value> on the command line then the expected syntax for getopt would be getopt('st:',\%opt); with the : indicating a required value for the argument.

I'll have to check the documentation on that but this did mean I thought the lack of a : would make it clear no value was being supplied for aither the s or t arguments.

In reply to Re^2: Detecting an undefined hash key by LesleyB
in thread Detecting an undefined hash key by LesleyB

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