How do I detect a keyboard press?

[Daniel Smith "innovation, not litigation..."]

In <1991May3.070038.3659 at swsrv1.cirr.com> toma at swsrv1.cirr.com (Tom Armistead) writes:

> In article <1991May2.125554.11557 at vaxa.strath.ac.uk> cadp35 at vaxa.strath.ac.uk writes:
> >any of you wiz's know how I can detect a keyboard press in shell script??
> >
> >I want it for a script which will execute a certain option if I press the
> >correct key.


	One way is to get my grabchars package from comp.sources.misc archives,
which was written to do just this.  You can also get it directly from
me.  I also include scripts which can generate skeletons of menuing
scripts.

	Another thing you can do is this:

	(reassemble this as one line...)

        alias   get_choice 'set choice_prompt=(\!*); echo -n "$choice_prompt"; s
tty cbreak ; set choice=`echo "dd if=/dev/tty bs=1 count=1 2>/dev/null"|sh|cat -
v` ; stty -cbreak'

	as in:

	get_choice '        your choice >> '

        if ("$choice" =~ '?') set choice=help
        if ("$choice" =~ '^[') set choice=escape
        switch ($choice)
		bla bla bla...
	endsw


				Daniel

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