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 sabina 2.6.17-11-generic #2 SMP Tue Mar 13 23:32:38 UTC
2007 i686 GNU/Linux
Machine Type: i486-pc-linux-gnu
Bash Version: 3.1
Patch Level: 17
Release Status: release
Description:
Between double quotes, and with something more, Substring Expansion of
length 0 substitutes
by one byte, the "177 127 7F DEL" ascii character.
Repeat-By:
$ VAR="0123456789"
The first two examples are OK.
$ echo n${VAR:0:0}n | od -a
0000000 n n nl
0000003
$ echo n"${VAR:0:0}"n | od -a
0000000 n n nl
0000003
In the rest the 'del' character is inserted.
$ echo n"${VAR:0:0}n" | od -a
0000000 n del n nl
0000004
$ echo "n${VAR:0:0}"n | od -a
0000000 n del n nl
0000004
$ echo "n${VAR:0:0}n" | od -a
0000000 n del n nl
0000004
$ echo "n${VAR:0:0}"n | od -a
0000000 n del n nl
0000004
It happens for other offset too.
$ echo "n${VAR:2:0}n" | od -a
0000000 n del n nl
0000004
$ echo "n${VAR:5:0}n" | od -a
0000000 n del n nl
0000004
$
Fix:
¿?
Thanks
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