From: Peter Stephenson <pws@csr.com>
To: zsh-users@sunsite.dk
Subject: Re: Script breaking on cd *param
Date: Wed, 06 Dec 2006 12:26:49 +0000 [thread overview]
Message-ID: <200612061226.kB6CQnpu022275@news01.csr.com> (raw)
In-Reply-To: <Xns98917C0D1AAA8zzappergmailcom@80.91.229.5>
zzapper wrote:
> Hi
> The following should try to cd to a subdirectory in the 4 following ways.
>
> cd param
> cd param*
> cd *param
> cd *param*
>
> However if it fails on the second the script breaks
> with "no matches found: *param "
You are likely to get some sort of error, possibly from cd, possibly
highly unexpected (try it if param* expands to two files, or not a
directory, for example) unless you actually test the expansion is a
single directory. So you really need to be more careful.
local str
local -a dirs
for str in param param\* \*param \*param\*; do
# Expands to all matching directories, else nothing.
dirs=(${~str}(N/))
if (( ${#dirs} == 1 )); then
cd $dirs
break
fi
done
--
Peter Stephenson <pws@csr.com> Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK Tel: +44 (0)1223 692070
To access the latest news from CSR copy this link into a web browser: http://www.csr.com/email_sig.php
next prev parent reply other threads:[~2006-12-06 12:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-06 12:11 zzapper
2006-12-06 12:26 ` Peter Stephenson [this message]
2006-12-06 13:42 ` zzapper
2006-12-06 13:52 ` Peter Stephenson
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