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Re: Documentation for a="$@"
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From: |
Chet Ramey |
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Subject: |
Re: Documentation for a="$@" |
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Date: |
Sat, 19 May 2018 21:58:20 -0400 |
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Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 |
On 5/19/18 3:40 PM, Ilkka Virta wrote:
> In Bash, using "$@" in an assignment, (as in a="$@" ) concatenates the
> positional parameters to single string, joined with spaces. Somewhat
> similarly to what "$*" does, except that $* uses the first letter of IFS,
> but $@ always uses a space.
The key is word splitting, not assignment in particular. The shell uses
spaces to separate the positional parameters if the word is not going to
be split. I will add somethng to describe that.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/