From: mike
To: bug-bash@gnu.org
Subject: [50 character or so descriptive subject here (for reference)]
Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-unknown-linux-gnu'
-DCONF_VENDOR='unknown' -DLOCALEDIR='/usr/share/locale'
-DPACKAGE='bash' -DSHELL -DHAVE_CONFIG_H -I. -I. -I./include
-I./lib -march=x86-64 -mtune=generic -O2 -pipe
uname output: Linux 0x01 2.6.32-ARCH #1 SMP PREEMPT Sat Jan 23
11:41:48 CET 2010 x86_64 AMD Phenom(tm) 9550 Quad-Core Processor
AuthenticAMD GNU/Linux
Machine Type: x86_64-unknown-linux-gnu
Bash Version: 4.0
Patch Level: 35
Release Status: release
Description:
Something is wrong with variable substitution in the exec invocation.
When i try to close file descriptor whose number is in variable X with
command:
exec $X>&-
Bash reports:
exec: NUMBER: not found
where NUMBER is number of file discriptor. The error occurs when bash
is used as interperter, and is not emerge when the commands are
beeing entered in shell.
When i directly write some file discriptor in the command in some
script everything works fine:
exec 2>&- # success
x=2
exec $x>&- # failure
Repeat-By:
sh -c 'x=2; exec $x>&-'
