> is the "less than" operator. >= is the "less than or equal to" operator. => is the "fat comma" operator, which is like a comma but allows its left-hand operand to be a bareword without Perl giving a hissy fit.
Jeff japhy Pinyan,
P.L., P.M., P.O.D, X.S.:
Perl,
regex,
and perlhacker How can we ever be the sold short or the cheated, we who for every service have long ago been overpaid? ~~ Meister Eckhart