Re: [Groff] poor man's wysiwyg for groff/gv

[Tadziu Hoffmann]

> If you run a process in the background with an ampersand the shell puts
> the process id in $!.
> This would save the mucking around with ps and grepping out grep.

Yes, but the shell that starts gv terminates, so that information
gets lost.  You might save it to a file, but what happens if gv
unexpectedly dies, or the user accidentally quits it?  The only
reliable way of finding out whether gv is running is to look at
the process table.