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On 15:02 Tue 13 Sep , Amadeusz Żołnowski wrote: |
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> Excerpts from Joshua Kinard's message of 2011-09-13 14:26:02 +0200: |
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> > > You don't need -n/-z with [[. |
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> > > |
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> > > [[ $var ]] == [[ -n $var ]] |
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> > > [[ ! $var ]] == [[ -z $var ]] |
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> > |
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> > What about other comparisons, like -f, -e, or -d? |
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> |
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> Same as inside [, but no need of quotes inside [[. |
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> |
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> > Also, is this a bash4-only thing, or bash3 and/or bash2 as well? |
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> |
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> I'm not sure. |
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> |
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> OT: When I was going through recruitment process, dberkholz pointed to |
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> me that I use things bash4-only. And again: why we need to stick to |
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> ancient 3 version? I would understand pseudo POSIX compatibility, but |
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> what is the benefit of bash3 compatibility while bash4 is stable |
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> already? |
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|
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It's because people want to pretend that it's possible for incredibly |
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outdated systems (those with bash-3 only) to be updated. |
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|
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We're stuck in this limbo because "we" have apparently decided that just |
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waiting a year, as we used to do, isn't good enough anymore; but at the |
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same time, we don't have a better mechanism in place yet. So we're |
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waffling around, doing nothing. |
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|
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-- |
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Thanks, |
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Donnie |
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|
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Donnie Berkholz |
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Council Member / Sr. Developer |
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Gentoo Linux |
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Blog: http://dberkholz.com |
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