From: John (Most modern computers would break if you stood on them) Mackin <john@ civil.su.oz.au>
To: The rc Mailing List <rc@hawkwind.utcs.toronto.edu>
Subject: backquote poser
Date: Tue, 9 Mar 1993 06:32:13 -0500 [thread overview]
Message-ID: <199303092132.8960.rc.baful@civil.su.oz.au> (raw)
I was just writing an rc script where I wanted to assign a variable
the value of the output of the "domainname" command. This command
might not be present on the system the script is being run on; if not,
I wanted the variable assigned the null list, and for no error message
about domainname not being found to be echoed onto the script's
standard error. The best thing I could come up with was:
domain = ` { exec >[2] /dev/null; domainname }
Anyone got a cleaner idea? For some reason it seems to me it should
be able to be done more neatly. I guess I mainly don't like needing
a semicolon.
OK,
John.
next reply other threads:[~1993-03-09 11:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1993-03-09 11:32 John Mackin [this message]
1993-03-09 12:13 ` mycroft
1993-03-09 12:28 Icarus Sparry
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=199303092132.8960.rc.baful@civil.su.oz.au \
--to=john@civil.su.oz.au \
--cc=rc@hawkwind.utcs.toronto.edu \
/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).