Given that $a and $b are special to sort it is a bad idea to use them as regular variables.

Also note that if you are willing to properly localize them with my, then you should not need to issue an explicit close. Of course declaring $a or $b to be lexical makes writing a sort subroutine hard (hence the first piece of advice).

Finally I think your "only way to fly" comment is a bit strong...

In reply to Re (tilly) 7: Determining what line a filehandle is on by tilly
in thread Determining what line a filehandle is on by Anonymous Monk

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