Pedantic Comment (Was Re: Clarification Re: Displaying an arbitrary file in _both_ HEX and ASCII)

[John Hasler <jhasler@newsguy.com>]

Richard writes:
> I would prefer an actual GUI. But for a command line program it does
> very well.

Text UI or interactive, not command line.  With a command line program
you enter the program name, some options and some arguments at the shell
prompt and hit enter.  The program runs, sends its output (if any) to
the standard output and its error message (if any) to the standard
error.  The shell prompt then returns.  Grep is a command line program.
-- 
John Hasler 
jhasler@newsguy.com
Elmwood, WI USA