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Re: I thought >&- and > /dev/null were almost the same
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From: |
Paul Jarc |
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Subject: |
Re: I thought >&- and > /dev/null were almost the same |
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Date: |
Sat, 24 Nov 2001 20:45:59 -0500 |
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User-agent: |
Gnus/5.090004 (Oort Gnus v0.04) Emacs/20.7 (i386-redhat-linux-gnu) |
Dan Jacobson <jidanni@deadspam.com> wrote:
> $ date > /dev/null
> $ date >&-
> Date: Fri Dec 31 18:59:38 1999 -0500
> $ echo o >&-
> $ uname -a
> Linux localhost.localdomain 2.2.17-21mdk #1 Thu Oct 5 13:16:08 CEST 2000 i586
> unknown
Try this:
bash -c 'ls -l /proc/$$/fd >&2' >&-
If it shows an open descriptor "1", then there's a bash bug. If not,
then the date command is noticing that descriptor 1 is closed and
writing to another descriptor instead.
> And how do you explain echo's okness?
I'd guess that bash is correct, and that date is trying too hard to
protect you from yourself.
paul