Bug 63904 - /etc/bashrc could optimise resource usage with PROMPT_COMMAND and /etc/sysconfig/bash-prompt-{xterm,default}
Summary: /etc/bashrc could optimise resource usage with PROMPT_COMMAND and /etc/syscon...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: setup
Version: 7.2
Hardware: noarch
OS: Linux
medium
low
Target Milestone: ---
Assignee: Bill Nottingham
QA Contact: David Lawrence
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2002-04-21 10:21 UTC by Martin Sandiford
Modified: 2014-03-17 02:27 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2004-09-23 05:40:45 UTC
Embargoed:

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Description Martin Sandiford 2002-04-21 10:21:56 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020311

Description of problem:
/etc/bashrc could set PROMPT_COMMAND to "source
/etc/sysconfig/bash-prompt-xterm" instead of executing directly.

This would prevent an additional shell being run for trivial shell scripts (eg
echo commands).  Scripts that required a separate shell execution could
trivially spawn a new shell in the script.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
This is a optimisation issue, rather than a bug per se.  The system is currently
performing as expected.



Additional info:

Simple change to /etc/bashrc (hence the setup package) at line 28 for setup-2.5.7-1:

From:
PROMPT_COMMAND=/etc/sysconfig/bash-prompt-xterm

To:
PROMPT_COMMAND="source /etc/sysconfig/bash-prompt-xterm"
Comment 1 Bill Nottingham 2004-09-23 05:40:45 UTC 
Hm, while this is an optimization, this would break making that an
executable (dunno why you'd do that, but...)
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