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[Fwd: Re: PROBLEM: bash builtin read discards leading&trailing spaces]
From: |
gregory mott |
Subject: |
[Fwd: Re: PROBLEM: bash builtin read discards leading&trailing spaces] |
Date: |
05 May 2003 21:19:52 +0100 |
okic, unset IFS is not the same as IFS= <null>
never mind, sorry to bother
On Sat, 2003-05-03 at 20:02, gmott@together.net wrote:
> Configuration Information [Automatically generated, do not change]:
> Machine: i686
> OS: linux-gnu
> Compiler: gcc
> Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i686'
> -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu'
> -DCONF_VENDOR='pc' -DSHELL -DHAVE_CONFIG_H -D_GNU_SOURCE -I. -I.
> -I./include -I./lib -O2 -march=i386 -mcpu=i686
> uname output: Linux ruby 2.4.18-27.7.x #1 Wed Mar 26 10:50:35 EST 2003 i686
> unknown
> Machine Type: i686-pc-linux-gnu
>
> Bash Version: 2.05a
> Patch Level: 0
> Release Status: release
>
> Description:
> bash builtin read command discards leading&trailing spaces
> even when IFS is unset
> this means a workaround hack is required to handle pathnames which happen
> to have leading or trailing spaces
>
> Repeat-By:
> [Describe the sequence of events that causes the problem
> to occur.]
> bash-2.05a$ unset IFS
> *bash-2.05a$ echo -en " boo hoo \0"|{ read -rd $'\0' a;echo "<$a>";}
> <boo hoo>
> *bash-2.05a$ echo -en ". boo hoo .\0"|{ read -rd $'\0' a;echo "<$a>";}
> <. boo hoo .>
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gregory mott <=