Package: bash
Version: 3.1dfsg-7
Severity: normal
"typeset -r" will make a variable readonly. From bash(1):
-r Make names readonly. These names cannot then be
assigned values by subsequent assignment
statements or unset.
The man page then goes on to say:
Using `+' instead of `-' turns off the attribute
instead, with the exception that +a may not be used to
destroy an array variable.
This means I should be able to "typeset +r" to undo the "-r", but it doesn't:
------------------------------------------------------------------------
(debian) [EMAIL PROTECTED]:~$ var=xxx
(debian) [EMAIL PROTECTED]:~$ echo $var
xxx
(debian) [EMAIL PROTECTED]:~$ typeset -r var
(debian) [EMAIL PROTECTED]:~$ var=yyy
bash: var: readonly variable
(debian) [EMAIL PROTECTED]:~$ typeset +r var
bash: typeset: var: readonly variable
(debian) [EMAIL PROTECTED]:~$ var=yyy
bash: var: readonly variable
(debian) [EMAIL PROTECTED]:~$ echo $var
xxx
------------------------------------------------------------------------
I don't know if this is a documentation bug or a bash bug, but one or
the other seems to be wrong here.
-- System Information:
Debian Release: 4.0
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-2-vserver-686
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) (ignored: LC_ALL
set to en_GB.UTF-8)
Versions of packages bash depends on:
ii base-files 4 Debian base system miscellaneous f
ii debianutils 2.17.3 Miscellaneous utilities specific t
ii libc6 2.3.6.ds1-8 GNU C Library: Shared libraries
ii libncurses5 5.5-5 Shared libraries for terminal hand
bash recommends no packages.
-- no debconf information
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