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From: Daniel Shahaf <d.s@daniel.shahaf.name>
To: zsh-users@zsh.org
Subject: Re: shuffle array
Date: Sun, 1 Dec 2019 23:38:48 +0000	[thread overview]
Message-ID: <20191201233848.7selcpkvenlu65px@tarpaulin.shahaf.local2> (raw)
In-Reply-To: <20191201200719.anzbs27c7phgdnmm@chaz.gmail.com>

Stephane Chazelas wrote on Sun, Dec 01, 2019 at 20:07:19 +0000:
> array=("${(0@)$(printf '%s\0' "$array[@]" | shuf -z)[1,-2]}")
> 
> But that would still not work for array elements containing
> NULs.

I think the following would work? —

    typeset -a l=(…)
    eval "l=(" $(print -rl -- "${(@qqqq)l}" | shuf) ")"

shuf(1) expects newline-separated output, and the output of ${(qqqq)} never
has literal newlines.

  parent reply	other threads:[~2019-12-01 23:39 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
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 [this message]
     [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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