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Re: [Help-bash] Things like ${parameter^} only works with path expansion
From: |
Chet Ramey |
Subject: |
Re: [Help-bash] Things like ${parameter^} only works with path expansion? |
Date: |
Sat, 11 Apr 2015 13:16:52 -0400 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 |
On 4/11/15 12:56 PM, Peng Yu wrote:
> I just notice that the manual says "Each character in the expanded
> value of parameter is tested against pattern, and, if it matches the
> pattern, its case is converted." But the following example shows that
> ',' only allow the match of the first character. Is there anything
> wrong with the manual or I don't understand it correctly?
Again, you didn't read far enough:
The ^^ and ,, expansions convert each matched character
in the expanded value; the ^ and , expansions match and convert
only the first character in the expanded value.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU address@hidden http://cnswww.cns.cwru.edu/~chet/
Re: [Help-bash] Things like ${parameter^} only works with path expansion?, Chet Ramey, 2015/04/11