Hi greatshots,
opendir doesn't allow wildcards, as it is not designed to list filenames, but to open a special file, that is a directory.
In the perldoc for opendir ( perldoc -f opendir) you have an small example filtering filenames from an opendir and readdir, using grep. You can do something similar:
opendir(DIR, $some_dir) || die "can't opendir $some_dir: $!";
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@tdefs = grep { /\.tdef$/ && -f "$some_dir/$_" } readdir(DIR);
closedir DIR;
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