From: Sven Wischnowsky <wischnow@informatik.hu-berlin.de>
To: zsh-users@sunsite.auc.dk
Subject: Re: processing of pipelines
Date: Wed, 1 Sep 1999 10:29:24 +0200 (MET DST) [thread overview]
Message-ID: <199909010829.KAA32012@beta.informatik.hu-berlin.de> (raw)
In-Reply-To: "Bart Schaefer"'s message of Tue, 31 Aug 1999 22:34:44 +0000
Bart Schaefer wrote:
> ...
>
> Zsh *does* run the last command in a pipeline in the current
> shell when the command *is* a builtin, even if that builtin is a loop,
> which is AFAIK different from any other shell; it means that you can do
> things like
>
> some external command | while read line; do export $line; done
>
> and the current shell's environment will actually be modified.
>
> ...
Only one more comment: once such a pipe is suspended, the shell
builtin/construct at the end is put in a sub-shell (and the
environment of the parent won't change any more, of course).
This has caused some trouble lately... (but you *can* suspend such
pipes and if you don't do that you can use parameters changed there --
its an attempt to get the best of both worlds).
Bye
Sven
--
Sven Wischnowsky wischnow@informatik.hu-berlin.de
next reply other threads:[~1999-09-01 8:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-09-01 8:29 Sven Wischnowsky [this message]
-- strict thread matches above, loose matches on Subject: below --
1999-08-31 15:41 Sweth Chandramouli
1999-08-31 22:34 ` Bart Schaefer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=199909010829.KAA32012@beta.informatik.hu-berlin.de \
--to=wischnow@informatik.hu-berlin.de \
--cc=zsh-users@sunsite.auc.dk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).