From: Peter Stephenson <p.stephenson@samsung.com>
To: zsh-users@zsh.org
Subject: Re: grammar triviality with '&&'
Date: Mon, 02 Mar 2015 11:06:10 +0000 [thread overview]
Message-ID: <20150302110610.2e2c7e86@pwslap01u.europe.root.pri> (raw)
In-Reply-To: <20150302104619.GC6869@xvii.vinc17.org>
On Mon, 2 Mar 2015 11:46:19 +0100
Vincent Lefevre <vincent@vinc17.net> wrote:
> Now, assume that as soon as some command fails, you don't want
> to execute the following ones, but you still want to have the
> 3 commands in the history when invoking the latest cmd1 by a
> history search (something I often do). Currently, the only way
> to do that is, AFAIK:
>
> cmd1
> [[ $? -eq 0 ]] && cmd2
> [[ $? -eq 0 ]] && cmd3
>
> But having
>
> cmd1
> && cmd2
> && cmd3
>
> could be nicer (I would also like the fact that one can easier see
> that these 3 commands are related).
% andfn() {
integer stat=$?
(( $stat > 0 )) && return $stat
return 0
}
% alias and='andfn &&'
% print this worked
this worked
% and print so did this
so did this
% and { print but this failed; false; }
but this failed
% and print so this didn\'t get printed
--
Peter Stephenson | Principal Engineer Samsung Cambridge Solution Centre
Email: p.stephenson@samsung.com | Phone: +44 1223 434724 |
www.samsung.com
next prev parent reply other threads:[~2015-03-02 11:16 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-01 16:07 Ray Andrews
2015-03-01 16:43 ` ZyX
2015-03-01 17:01 ` Ray Andrews
2015-03-01 18:48 ` Bart Schaefer
2015-03-01 19:00 ` ZyX
2015-03-01 19:16 ` Ray Andrews
2015-03-01 20:48 ` ZyX
2015-03-01 18:49 ` Lawrence Velázquez
2015-03-02 2:27 ` Vincent Lefevre
2015-03-02 3:12 ` Ray Andrews
2015-03-02 5:22 ` Lawrence Velázquez
2015-03-02 3:53 ` Kurtis Rader
2015-03-02 4:18 ` Ray Andrews
2015-03-02 5:22 ` Kurtis Rader
2015-03-02 16:17 ` Ray Andrews
2015-03-02 18:52 ` Kurtis Rader
2015-03-02 19:03 ` ZyX
2015-03-02 20:16 ` Kurtis Rader
2015-03-03 4:15 ` ZyX
2015-03-03 4:43 ` Kurtis Rader
2015-03-04 15:03 ` Vincent Lefevre
2015-03-04 19:07 ` ZyX
2015-03-02 19:25 ` Ray Andrews
2015-03-02 10:46 ` Vincent Lefevre
2015-03-02 11:06 ` Peter Stephenson [this message]
2015-03-02 19:19 ` Bart Schaefer
2015-03-04 14:47 ` Vincent Lefevre
2015-03-05 1:51 ` Bart Schaefer
2015-03-05 10:06 ` Peter Stephenson
2015-03-02 8:54 ` Bart Schaefer
2015-03-02 10:31 ` Vincent Lefevre
2015-03-02 16:31 ` Ray Andrews
2015-03-02 16:49 ` Bart Schaefer
2015-03-02 17:38 ` Ray Andrews
2015-03-02 18:51 ` Bart Schaefer
2015-03-04 8:55 ` Vincent Lefevre
2015-03-04 17:12 ` Ray Andrews
2015-03-06 4:59 ` Bart Schaefer
2015-03-06 16:10 ` Ray Andrews
2015-03-06 20:23 ` Lawrence Velázquez
2015-03-06 21:25 ` Ray Andrews
2015-03-06 16:32 ` Vincent Lefevre
2015-03-06 17:43 ` Bart Schaefer
2015-03-06 21:01 ` Ray Andrews
2015-03-09 11:26 ` Vincent Lefevre
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