A GNU bash2 oddity -- was: Re: [NTLUG:Discuss] An Oddity (bug) inRedhat 7.1

[Kenneth Loafman]

Thanks for the help on this.  Looks like we want to find a new rpm for
bash for 7.1, then everything will work.  That's easier than going back
through the full release process for our code.  Will put in a bug report
against our stuff to move away from the use of the system() call.  [FYI
- system() uses /bin/sh by default, so changing the behavior of system()
may be more problematic].

...Ken

R P Herrold wrote:
> 
> Note the subject line change:
> 
> On Sun, 28 Oct 2001, Kenneth Loafman wrote:
> 
> > like the ones I supplied, or with system() calls in Python, etc.  sh is
> > symlinked to bash, so the name difference may be the problem.  Still
> > chasing.  If you've got access to 7.1 and 7.2 I'd appreciate a run of
> > the tests from the first message in this thread.
> 
> "Use the source, Luke" <grin>
> 
> from the changelog for bash2.05
> -------------------------- quote ----------------------------
> This document details the changes between this version,
> bash-2.05-release, and the previous version, bash-2.05-beta2.
> 
> 3.  New Features in Bash
> 
> a.  The `>&word' redirection now works in POSIX mode as it does by default,
>     since POSIX.2 leaves it unspecified.
> -------------------------- end quote ------------------------
> ---------------------------------
> 
> RH 7.2 host (bash2-05):
> 
> bash-2.05$ ./testredir
> Test with \&\>
> Test with \>\&
> ==========================
> testredir1 started
> ==========================
> testredir1 started
> bash-2.05$ cat testredir testredir1
> #! /bin/sh
> bash-2.05$ ./testredir ; cat testredir testredir1
> Test with \&\>
> Test with \>\&
> ==========================
> testredir1 started
> ==========================
> testredir1 started
> #!/bin/sh
> 
> echo "Test with \&\>"
> 
> ./testredir1 &> testredir1a.log
> 
> echo "Test with \>\&"
> 
> ./testredir1 >& testredir1b.log
> 
> echo "=========================="
> cat testredir1b.log
> echo "=========================="
> cat testredir1b.log
> #!/bin/sh
> 
> echo "testredir1 started"
> 
> bash-2.05$
> 
> (that is, expected results -- I have made quoting changes on
> the echo, and the she-bang to conform to my coding style)
> 
> --------------------------------------------
> 
> RH 7.1 (bash2.04) -- Expectedly, I do not get the second file
> either:
> 
> [root at serverc /root]# ./testredir ; cat testredir testredir1
> Test with \&\>
> Test with \>\&
> testredir1 started
> ==========================
> testredir1 started
> ==========================
> cat: testredir1b.log: No such file or directory
> #!/bin/sh
> 
> echo "Test with \&\>"
> 
> ./testredir1 &> testredir1a.log
> 
> echo "Test with \>\&"
> 
> ./testredir1 >& testredir1b.log
> 
> echo "=========================="
> cat testredir1a.log
> echo "=========================="
> cat testredir1b.log
> #!/bin/sh
> 
> echo "testredir1 started"
> 
> [root at serverc /root]#
> 
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