You need to escape the '.' in your split:
$base = ( split(/\./,$fname) );
(always a good idea), the following works fine for me:
perl -Mstrict -w -e '
my $fname = "test.txt";
my $base = ( split(/\./,$fname) );
: And, as others have mentioned, you have single quotes inside single quotes, too :)
Hope that helps ..
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