Package: bash
Version: 4.2-1
Severity: normal
Tags: patch
My "$HOME"/.bashrc does set -u, which causes it to warn about
dereferencing undefined variables. Whenever I start a shell, I get a
warning (in LANG=fi_FI.utf8) like this:
bash: debian_chroot: sitomaton muuttuja
The fix is simple. In /etc/bash.bashrc, replace $debian_chroot with
${debian_chroot:-}. This should work even in dash:
- if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then
+ if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
There are similar problems in the bash-completion package, which prompted me
to uninstall it. (It spit out similar messages, and completion did not work
at all when the package was installed.)
-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=fi_FI.utf8, LC_CTYPE=fi_FI.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages bash depends on:
ii base-files 6.5
ii dash 0.5.7-2
ii debianutils 4.2.1
ii libc6 2.13-26
ii libtinfo5 5.9-4
Versions of packages bash recommends:
pn bash-completion <none>
Versions of packages bash suggests:
pn bash-doc <none>
-- Configuration Files:
/etc/bash.bashrc changed:
[ -z "$PS1" ] && return
shopt -s checkwinsize
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
debian_chroot=$(cat /etc/debian_chroot)
fi
PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
if [ -x /usr/lib/command-not-found -o -x /usr/share/command-not-found ]; then
function command_not_found_handle {
# check because c-n-f could've been removed in the meantime
if [ -x /usr/lib/command-not-found ]; then
/usr/bin/python /usr/lib/command-not-found -- "$1"
return $?
elif [ -x /usr/share/command-not-found ]; then
/usr/bin/python /usr/share/command-not-found -- "$1"
return $?
else
return 127
fi
}
fi
-- no debconf information
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