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Re: backtick expansion is truncated


From: Chet Ramey
Subject: Re: backtick expansion is truncated
Date: Sun, 05 Mar 2006 16:59:48 -0500
User-agent: Thunderbird 1.5 (Macintosh/20051201)

Brian Minton wrote:
> Configuration Information [Automatically generated, do not change]:
> Machine: i486
> OS: linux-gnu
> Compiler: gcc
> Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i486' 
> -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i486-pc-linux-gnu' 
> -DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL 
> -DHAVE_CONFIG_H   -I.  -I../bash -I../bash/include -I../bash/lib   -g -O2
> uname output: Linux bminton.is-a-geek.net 2.6.15.4 #0 SMP Sat Feb 18 12:04:34 
> EST 2006 i686 GNU/Linux
> Machine Type: i486-pc-linux-gnu
> 
> Bash Version: 3.1
> Patch Level: 5
> Release Status: release
> 
> Description:
> If I use a long backtick expansion, it is not all evaluated in some 
> circumstances (but it apparently is if only using builtins).
> 
> Repeat-By:
> for f in `seq 20000`; do ls /dev/null; done|wc -l
> yields 4097, not 20000 that it should.  However,
> for f in `seq 20000`; do echo /dev/null; done|wc -l
> yields 20000 (presumably because of using the bash builtin echo)

Please install bash-3.1 patch 7 and see if the behavior persists.

Chet
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
( ``Discere est Dolere'' -- chet )
                                           Live Strong.  No day but today.
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/




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