2/14    how do people do floating point arithmetic in /bin/sh? i make
        calls to bc, but i was wondering if there's a better way.
        \_ I use awk.
        \_ I use dc.
        \_ use perl!
           \_ too heavyweight
                \_ doing the whole thing in perl is probably more lightweight
                   than doing it in sh and forking off everything you need to
                   fork off to actually accomplish your task.
                   \_ well, that naturally depends on how much floating point
                      arithmetic or other non-native-to-sh stuff you need to
                      do in the script...