Re: caps lock...num lock...whatever...

[Dave Sherohman <esper@sherohman.org>]

On Sat, Aug 25, 2001 at 07:49:34AM +0530, shyamk@eth.net wrote:
> BTW what is  /dev/null all about ?

> if tty > /dev/null 2>&1 ; then
>   case $(basename `tty`) in

I added that in because, under certain circumstances (although I
don't recall _which_ circumstances), evaluating $(basename `tty`)
would spew an error because there wasn't a valid tty to work with.
So I call tty first and redirect everything to /dev/null just to get
the exit status, so that I can verify that there is a tty before
trying to examine it.

Of course, checking the man page now to see if it would remind me of
when the case statement would fail, I see that `tty -s` would do the
same thing as my stdout/stderr redirection...

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