9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: roger peppe <rogpeppe@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] environment variables
Date: Wed, 25 Nov 2009 11:48:18 +0000	[thread overview]
Message-ID: <df49a7370911250348g26f31cbfp20544205498d81a1@mail.gmail.com> (raw)
In-Reply-To: <a560a5d00911241035v5e5c83fat7eaf362c14f759e3@mail.gmail.com>

generally, the correct answer is: don't do that.
it's better to treat subshells as if they exist
in a different scope, even if the environment
group isn't forked.

if you want to get values back from a script,
send them in its stdout.

2009/11/24 Rudolf Sykora <rudolf.sykora@gmail.com>:
>> the easy (and correct) answer is
>>        exec rc
>>
>> - erik
>>
> Well but this you can't do when being in the middle of a script execution...
> Can you?
>
> Thanks
> Ruda
>



  reply	other threads:[~2009-11-25 11:48 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <<a560a5d00911240828q31c106d7rf354f14baa15e2d3@mail.gmail.com>
2009-11-24 18:18 ` erik quanstrom
2009-11-24 18:35   ` Rudolf Sykora
2009-11-25 11:48     ` roger peppe [this message]
2009-11-23 22:24 Rudolf Sykora
2009-11-24  2:33 ` sqweek
2009-11-24  8:34   ` Rudolf Sykora
2009-11-24 11:29 ` roger peppe
2009-11-24 16:28   ` Rudolf Sykora

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=df49a7370911250348g26f31cbfp20544205498d81a1@mail.gmail.com \
    --to=rogpeppe@gmail.com \
    --cc=9fans@9fans.net \
    /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.
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).