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From: Peter Stephenson <p.w.stephenson@ntlworld.com>
To: Ray Andrews <rayandrews@eastlink.ca>, zsh-users@zsh.org
Subject: Re: protect spaces and/or globs
Date: Wed, 10 Feb 2021 15:47:31 +0000 (GMT)	[thread overview]
Message-ID: <752329601.3729797.1612972051119@mail2.virginmedia.com> (raw)
In-Reply-To: <cbcc17c7-e4c6-638d-8d6f-931fa5fe5097@eastlink.ca>


> On 10 February 2021 at 15:18 Ray Andrews <rayandrews@eastlink.ca> wrote:
>    sstring="grep --color=always -i -- ${grepargs[@]}"  # I need to save 
> to a scalar ...
>    print -rS "$sstring"                                # Write to 
> history ...
>    eval "$sstring"                                     # And 'eval'.

Don't turn it into a string here.

fullargs=(grep --color=always -i -- "${grepargs[@]}")
print -rS "$fullargs"
"${fullargs[@]}"

No eval needed, the arguments are now exactly the correct command arguments.

Actually, the

"${stuff[@]}"

is only needed to preserve empty arguments.  It's a good habit to get into,
but you can think about it more simply as just

$stuff

i.e. a set of array elements that turn into a set of command arguments.

pws


  reply	other threads:[~2021-02-10 15:47 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-09 20:42 Ray Andrews
2021-02-09 21:05 ` Lawrence Velázquez
2021-02-09 21:08 ` Peter Stephenson
2021-02-09 23:45   ` Ray Andrews
2021-02-10  0:22     ` Lawrence Velázquez
2021-02-10  0:51       ` Ray Andrews
2021-02-10  1:46         ` Lawrence Velázquez
2021-02-10  2:25           ` Ray Andrews
2021-02-10  2:52             ` Lawrence Velázquez
2021-02-10  1:52         ` Greg Klanderman
2021-02-10  2:29           ` Ray Andrews
2021-02-10 15:18           ` Ray Andrews
2021-02-10 15:47             ` Peter Stephenson [this message]
2021-02-10 16:19               ` Ray Andrews
2021-02-10 16:29                 ` Peter Stephenson
2021-02-10 20:53                   ` Ray Andrews
2021-02-10 22:14                     ` Bart Schaefer
2021-02-11 16:31                       ` Ray Andrews
2021-02-11 17:19                         ` Lawrence Velázquez
2021-02-11 19:48                           ` Ray Andrews
2021-02-10 18:08                 ` Bart Schaefer
2021-02-10 20:56                   ` Ray Andrews
2021-02-10 16:28             ` Lawrence Velázquez

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