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Re: sh, pwd -P and $PWD
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From: |
Eric Blake |
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Subject: |
Re: sh, pwd -P and $PWD |
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Date: |
Mon, 13 Nov 2006 07:33:21 -0700 |
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User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.8) Gecko/20061025 Thunderbird/1.5.0.8 Mnenhy/0.7.4.666 |
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According to Egmont Koblinger on 11/13/2006 7:26 AM:
> Hi,
>
> According to the bash manpage and to "help pwd", "pwd -P" should only print
> something but not change the state of bash.
Unfortunately, the current wording of POSIX 2001 requires 'pwd -P' to
change the state of bash. But this is only done in posix mode, since it
is so counterintuitive. Also, I raised this issue with the POSIX folks a
while ago, so the next version of POSIX (currently in draft form at
opengroup.org/austin, free registration required to read the draft; final
version expected in 2008) may relax this so that 'pwd -P' is once again
non-state-changing.
- --
Life is short - so eat dessert first!
Eric Blake ebb9@byu.net
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