Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: x86_64-pc-linux-gnu-gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-pc-linux-gnu'
-DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL
-DHAVE_CONFIG_H -I. -I. -I./include -I./lib -O2 -pipe
uname output: Linux theon 2.6.23-gentoo #6 SMP Sat Oct 27 20:31:22 NZDT 2007
x86_64 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux
Machine Type: x86_64-pc-linux-gnu
Bash Version: 3.2
Patch Level: 39
Release Status: release
Description:
In all contexts in which a character "X" has special meaning to bash,
it should
be possible to insert that character literally by writing "\X". This
fails in
one case: where "X" is "!", and the context is inside double quotes.
Repeat-By:
Steps to Reproduce:
1. echo "hi there!0"
2. echo "hi there\!0"
3. echo hi there\!0
4. echo "hi there$0"
5. echo "hi there\$0"
6. echo hi there\$0
Actual Results:
1. bash: !0: event not found
2. hi there\!0
3. hi there!0
4. hi there/bin/bash
5. hi there$0
6. hi there$0
Expected Results:
1. bash: !0: event not found
2. hi there!0
3. hi there!0
4. hi there/bin/bash
5. hi there$0
6. hi there$0
Note the difference in number 2.
Fix:
The following patch (adding "!" to the "slashify_in_quotes" set) seems to fix
the problem:
--- syntax.h-orig 2006-06-23 05:45:22.000000000 +1200
+++ syntax.h 2008-05-31 16:23:36.000000000 +1200
@@ -23,7 +23,7 @@
/* Defines for use by mksyntax.c */
-#define slashify_in_quotes "\\`$\"\n"
+#define slashify_in_quotes "\\`$\"!\n"
#define slashify_in_here_document "\\`$"
#define shell_meta_chars "()<>;&|"
Originally reported as Gentoo bug 224309
<http://bugs.gentoo.org/show_bug.cgi?id=224309>.
Lawrence D'Oliveiro
