On Fri, 3 Dec 2010 13:49:45 -0500 (EST)
der Mouse<mouse%Rodents-Montreal.ORG@localhost> wrote:
I normally use -_ when I want a deliberately erroneous flag to provoke
a usage message. I don't know of any shell under which that needs
escaping.
Better yet, just don't put any arguments at all.
Oh, wait. That's where we came in to this discussion. :-)
Seriously, that's why I like the behaviour of commands like this that
give a usage message when I don't type any arguments. That way I can
run the command, look at the usage then hit the up arrow and add my
arguments without having to backspace.