The glob function can do that for you:

my @datafiles = grep { -f }
    glob("$basepath$ARGV[0]/$ARGV[1].{dat,DAT}");

[download]
Note that your program logic will change since there can be more than one file for a given pair of arguments.

After Compline,
Zaxo

In reply to Re: Upper / Lower case extensions by Zaxo
in thread Upper / Lower case extensions by Cockneyphil

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