Let's see:
asdf.pl > asdf.lst
versus
asdf.pl -o asdf.lst
Hmmm! :?
Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"Think for yourself!" - Abigail
"Memory, processor, disk in that order on the hardware side. Algorithm, algorithm, algorithm on the code side." - tachyon