Article View: comp.unix.shell
Article #1414Re: Csh: first character of an arg is '-': Solution
From: Jak Kirman
Date: Sun, 07 Oct 1990 15:54
Date: Sun, 07 Oct 1990 15:54
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The test to see whether the first character of $i was '-' should have
been
if ( x$i =~ x-* ) then not
if ( $i =~ -* ) then
Several of the original replies used this, but I mistakenly thought it
was unnecessary, since it worked without it too. But as was pointed out
to me, if $i has a special meaning to the shell, like -e or -x etc, it
will complain about the lack of a filename to do the existence or
executability test on. Adding something like an 'x' or a " " before
both tests will solve this problem.
Sorry about the incorrect simplification of your answers :-)
Jak jak@cs.brown.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
For the female of the species is more deadly than the male.
-- Kipling, "The Female of the Species"
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!brunix!doorknob!jak From: jak@cs.brown.edu (Jak Kirman) Newsgroups: comp.unix.shell Subject: Re: Csh: first character of an arg is '-': Solution Message-ID: <JAK.90Oct7115458@bimini.cs.brown.edu> Date: 7 Oct 90 15:54:58 GMT References: <JAK.90Oct7001815@bimini.cs.brown.edu> Sender: news@brunix.UUCP Reply-To: jak@cs.brown.edu Distribution: comp Organization: Department of Computer Science, Brown University Lines: 20 In-reply-to: jak@cs.brown.edu's message of 7 Oct 90 04:18:15 GMT