> Not that that is always important. But I just commented today > because so often 'awk' is ignored as if its only capability is 'print $1' > when in fact it is actually very powerful but neglected.
FWIW, `sed` can also do that job. Tho the subtraction part would take
a lot more work (`sed` doesn't know how to subtract, so you'd have to
write a chunk of `sed` code which implements subtraction by hand.
A fun exercise for the masochists out there who like to write code for
Turing machines).
Stefan
