Path: utzoo!attcan!uunet!cs.utexas.edu!tut.cis.ohio-state.edu!bloom-beacon!primerd!damogran!franl
From: franl@damogran.prime.com
Newsgroups: comp.unix.questions
Subject: Re: Debugging ksh scripts
Message-ID: <34200001@damogran>
Date: 8 Jul 89 22:36:00 GMT
References: <1844@cbnewsh.ATT.COM>
Lines: 20
Nf-ID: #R:cbnewsh.ATT.COM:-184400:damogran:34200001:000:414
Nf-From: damogran.prime.com!franl    Jul  8 18:36:00 1989


Look for something like this:

  if [ $VAR ]
  then
    ...
  fi

which is testing (poorly) whether the value of the variable VAR is not
the null string.  When VAR is not set, it is interpreted as

  if [ ]		<=== here, "[" (aka "test") has no arguments!
  then
    ...
  fi
--
Fran Litterio
Internet: franl@damogran.prime.com
Usenet:   {uunet | csnet-relay}!primerd!damogran!franl
Voice:    USA-508-879-2960 x4251