Configuration Information [Automatically generated, do not change]:
Machine: i386
OS: linux-gnu
Compiler: i386-redhat-linux-gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i386'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i386-redhat-linux-gnu'
-DCONF_VENDOR='redhat' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL
-DHAVE_CONFIG_H -I. -I. -I./include -I./lib -D_GNU_SOURCE -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -m32
-march=i386 -mtune=pentium4 -fasynchronous-unwind-tables"
uname output: Linux XXX.zacglen.com 2.6.14-1.1644_FC4 #1 Wed Feb 22 11:11:16
EST 2006 i686 i686 i386 GNU/Linux
Machine Type: i386-redhat-linux-gnu
Bash Version: 3.0
Patch Level: 16
Release Status: release
Description:
Inconsistent handling of escapes in command substitution.
Repeat-By:
1. echo `echo a\\ b`
2. echo $(echo a \\ b)
In case 1) the result is plain "a b" (both escapes discarded)
In case 2) the result is "a\ b" (the space is has single escape)
Fix:
Can some attention be given to the problem of spaces in file names please?
For example, "vi `grep -l *.c`" is fine so long as there are no spaces
in the *.c filenames. But if there are, then the split on space
that command subsitution does messes everything up.
Given that "grep -l" outputs newline-delimited result then surely there
should it should be possibly to have the spaces on each line escaped
and only the newlines converted to spaces.
Perhaps quoted "$(command)" should properly escape spaces before converting
newline to space, a little like quoted "$*" does.
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