"DO" is a program which allows you to get a large amount of typing done
with a single command.  Simple string variables are available for plugging
in filenames, etc.

For complete information, see the printed Monitor Command Manual, which is
online as MONCOM.BH[S,DOC], with updates in MONCOM.UPD[S,DOC].

For some additional examples, see DO.RPH[UP,DOC].