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Re: Should [[ -v 1 ]] be supported?
From: |
Chet Ramey |
Subject: |
Re: Should [[ -v 1 ]] be supported? |
Date: |
Thu, 27 Dec 2018 13:22:15 -0500 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
On 12/26/18 10:49 PM, Peng Yu wrote:
> Although [[ -z ${1+s} ]] and (($#)) works for testing if $1 is set,
> neither of them are uniformly better performance wise. In this case,
> should [[ -v 1 ]] be supported?
So you're saying that neither of the existing options performs better
than the other, though they both perform well, so we should add some
new capability just because? That's a particularly poor argument.
--
``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/
- Should [[ -v 1 ]] be supported?, Peng Yu, 2018/12/26
- Re: Should [[ -v 1 ]] be supported?,
Chet Ramey <=
- Re: Should [[ -v 1 ]] be supported?, Martijn Dekker, 2018/12/27
- Re: Should [[ -v 1 ]] be supported?, Peng Yu, 2018/12/27
- Re: Should [[ -v 1 ]] be supported?, Eduardo Bustamante, 2018/12/27
- Re: Should [[ -v 1 ]] be supported?, Martijn Dekker, 2018/12/27
- Re: Should [[ -v 1 ]] be supported?, Peng Yu, 2018/12/27
- Re: Should [[ -v 1 ]] be supported?, G. Branden Robinson, 2018/12/27
- Re: Should [[ -v 1 ]] be supported?, Eduardo Bustamante, 2018/12/27
- Re: Should [[ -v 1 ]] be supported?, Chet Ramey, 2018/12/28
- Re: Should [[ -v 1 ]] be supported?, G. Branden Robinson, 2018/12/27
- Re: Should [[ -v 1 ]] be supported?, Peng Yu, 2018/12/27