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Re: Quick question: mv !(file) !$
From: |
Chet Ramey |
Subject: |
Re: Quick question: mv !(file) !$ |
Date: |
Tue, 13 Jan 2009 08:40:55 -0500 |
User-agent: |
Thunderbird 2.0.0.19 (Macintosh/20081209) |
Yang Zhang wrote:
> So it's failing on the first bang? But there is no problem once I
> replace !$ with 'dhclient' - usually extglob seems to work fine with the
> suppression of history expansion. Or does the presence of !$ somehow
> trigger history expansion (normally not run) which then attempts to
> history-expand everything?
Essentially the latter. The presence of !$ causes execution to proceed
to a point where the check for !( was omitted.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/