in reply to
parse file name
my ($volume, $directories, $file) = File::Spec->splitpath( $path );
my ($extension) = $file =~ /\.([^\.]+)$/;
So if you want to DWIM, you'd have to keep a list of known file extensions that contain a dot, and special case them.
Or you could consider it to be a recursive definition, so that .gz is the extension of the perl-5.10.1.tar, and .tar is the extension of perl-5.10.1.
6 of one, 1/2 dozen of another.
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The same name on every site (unless it is taken already)
A different name for every site
The same name for sites I don't care about, but different names on sites I do care about
Different names for sites I don't care about, but the same name on sites I do care about
The anonymous account
Someone else's username
Root, after hacking into the site
Results (240 votes),