From: Ray Andrews <rayandrews@eastlink.ca>
To: zsh-users@zsh.org
Subject: Re: trap question
Date: Fri, 25 Nov 2022 15:25:38 -0800 [thread overview]
Message-ID: <d765b639-1a21-03db-78a7-dae0bdef8ae2@eastlink.ca> (raw)
In-Reply-To: <CAN=4vMoT--+fknaDpjQJ8i4SadTVV=30GTvA6DL-fEwMvB-cuw@mail.gmail.com>
On 2022-11-25 10:57, Roman Perepelitsa wrote:
> Try replacing this:
> trap " [[ $var == '0' ]] && echo trap: var is: $var" EXIT
>
> with this:
>
> trap ' [[ $var == 0 ]] && echo trap: var is: $var' EXIT
>
Bullseye. And I understand it I think. Double quotes evaluated when
parsed, single quotes kept as literal until trap is sprung, yes? It
wouldn't have occurred to me since I'd have expected the '$var' to
remain un-expandable within single quotes. Is this an exception or
somehow to be viewed as routine? BTW, will this trap catch exiting
errors or just proper returns? I know it doesn't catch ^C.
next prev parent reply other threads:[~2022-11-25 23:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-25 18:35 Ray Andrews
2022-11-25 18:57 ` Roman Perepelitsa
2022-11-25 23:25 ` Ray Andrews [this message]
2022-11-26 1:57 ` Bart Schaefer
2022-11-26 4:25 ` Philippe Altherr
2022-11-26 4:27 ` Ray Andrews
2022-11-26 4:49 ` Lawrence Velázquez
2022-11-26 4:50 ` Bart Schaefer
2022-11-26 15:03 ` Ray Andrews
2022-11-26 15:25 ` Roman Perepelitsa
2022-11-27 1:49 ` Ray Andrews
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