From: DervishD <raul@pleyades.net>
To: Klaus Wacker <wacker@physik.uni-dortmund.de>
Cc: ZSH User List <zsh-users@sunsite.dk>
Subject: Re: Maildir empty?
Date: Mon, 12 Jul 2004 16:33:06 +0200 [thread overview]
Message-ID: <20040712143306.GB2502@DervishD> (raw)
In-Reply-To: <20040712140900.GP2860@born.physik.uni-dortmund.de>
Hi Klaus :)
* Klaus Wacker <wacker@physik.uni-dortmund.de> dixit:
> > > > Does this do what you want:
> > > > if [ -z $i/*/*([1]) ]
> > > > You need to use the single brackets so that the $i/*/* is treated as a
> > > > filename expansion.
> > Why are single brackets needed here instead of [[ -z ... ]]? Why
> > with single brackets the $i/*/* construction is treated as a filename
> > expansion? Is it not using double brackets?
> I can only give a partial answer. `[' is treated like any other
> command, so its arguments are subject to filename expansion.
Yes, I know, it happens even with the builtin '['.
>`[[...]]' is a real shell construct with its own syntax and rules.
> Don't ask me what exactly the rules are, but essentially they are
> geared more towards pattern matching than file globbing, if I
> remember correctly.
OK, that's a good explanation :)) Thanks a lot!
Raúl Núñez de Arenas Coronado
--
Linux Registered User 88736
http://www.pleyades.net & http://raul.pleyades.net/
next prev parent reply other threads:[~2004-07-12 14:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-12 7:37 Klaus Wacker
2004-07-12 9:43 ` DervishD
2004-07-12 9:44 ` Oliver Kiddle
2004-07-12 12:41 ` Klaus Wacker
2004-07-12 13:22 ` DervishD
2004-07-12 14:09 ` Klaus Wacker
2004-07-12 14:33 ` DervishD [this message]
2004-07-12 18:04 ` Peter Whaite
2004-07-13 18:28 ` Dan Nelson
2004-07-12 10:00 ` Peter Stephenson
2004-07-12 14:17 ` Klaus Wacker
2004-07-12 14:44 ` Peter Stephenson
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