How to Run `awk' Programs
=========================
There are several ways to run an `awk' program. If the program is
short, it is easiest to include it in the command that runs `awk', like
this:
awk 'PROGRAM' INPUT-FILE1 INPUT-FILE2 ...
When the program is long, it is usually more convenient to put it in
a file and run it with a command like this:
awk -f PROGRAM-FILE INPUT-FILE1 INPUT-FILE2 ...
This minor node discusses both mechanisms, along with several
variations of each.