From: Zefram <A.Main@dcs.warwick.ac.uk>
To: olsenc@ichips.intel.com (Clint Olsen)
Cc: zsh-workers@math.gatech.edu
Subject: Re: [ -z $FOO ] seems broken in beta13
Date: Mon, 10 Jun 1996 18:03:37 +0100 (BST) [thread overview]
Message-ID: <7884.199606101703@stone.dcs.warwick.ac.uk> (raw)
In-Reply-To: <199606101636.AA267124560@dtthp106.jf.intel.com> from "Clint Olsen" at Jun 10, 96 09:35:59 am
>I use [ -z $TERM ] to check for terminal settings, and since we revved up
>from 2.5, I'm now forced to use $+TERM.
>
>Now I get "argument expected". Is this correct?
Yes. If $TERM is empty, then $TERM will be removed from the command
line completely, leaving `[ -z ]`, which is a syntax error. If you use
"$TERM" (note the quotes), then the result will be `[ -z "" ]`, which
is legal.
-zefram
next prev parent reply other threads:[~1996-06-10 17:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-06-10 16:35 Clint Olsen
1996-06-10 17:03 ` Zefram [this message]
1996-06-10 17:18 ` Hrvoje Niksic
[not found] ` <hniksic@srce.hr>
1996-06-10 19:41 ` Bart Schaefer
1996-06-10 17:34 ` Zoltan Hidvegi
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