From: Stephane Chazelas <stephane.chazelas@gmail.com>
To: zsh-users@zsh.org
Subject: Re: shuffle array
Date: Sun, 1 Dec 2019 20:07:19 +0000 [thread overview]
Message-ID: <20191201200719.anzbs27c7phgdnmm@chaz.gmail.com> (raw)
In-Reply-To: <8636e7w0w9.fsf__36104.0529723809$1575015640$gmane$org@zoho.eu>
2019-11-29 09:19:02 +0100, Emanuel Berg:
> Marc Chantreux wrote:
>
> > print -l $array |shuff|read -A array
>
> *shuf
>
> The first two steps work
The first two steps (with shuf instead of shuff) only work if
array elements don't contain backslashes nor newline and are not
empty and the first one doesn't start with "-".
> but the result array
> seems to have only one element?
[...]
Yes, that's not what read -A does.
You could do things like:
array=("${(0@)$(printf '%s\0' "$array[@]" | shuf -z)[1,-2]}")
But that would still not work for array elements containing
NULs.
--
Stephane
next prev parent reply other threads:[~2019-12-01 20:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-29 3:20 Emanuel Berg
2019-11-29 6:42 ` Marc Chantreux
2019-11-29 8:19 ` Emanuel Berg
2019-11-29 8:43 ` Marc Chantreux
2019-11-29 8:50 ` Emanuel Berg
2019-11-29 13:38 ` Clint Adams
[not found] ` <8636e7w0w9.fsf__36104.0529723809$1575015640$gmane$org@zoho.eu>
2019-12-01 20:07 ` Stephane Chazelas [this message]
2019-12-01 21:22 ` Emanuel Berg
2019-12-01 21:25 ` Emanuel Berg
2019-12-01 23:46 ` Daniel Shahaf
2019-12-02 4:10 ` Emanuel Berg
2019-12-01 23:38 ` Daniel Shahaf
[not found] ` <20191201233848.7selcpkvenlu65px__33142.5388505281$1575243619$gmane$org@tarpaulin.shahaf.local2>
2019-12-02 14:14 ` Stephane Chazelas
2019-12-02 14:29 ` Roman Perepelitsa
2019-11-29 8:44 ` Emanuel Berg
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