Public bug reported:
Binary package hint: bash
lsb_release -rd
Description: Ubuntu 9.04
Release: 9.04
------------------------------------------
apt-cache policy bash
bash:
Installed: 3.2-5ubuntu1
Candidate: 3.2-5ubuntu1
Version table:
*** 3.2-5ubuntu1 0
500 http://us.archive.ubuntu.com jaunty/main Packages
100 /var/lib/dpkg/status
---------------------------------------------
What I expected:
I set an alias for 'ls' using the ~/.bash_aliases file but the alias was being
overridden and therefore failing to work as expected. No matter what I put into
the .bash_aliases file, it was being overridden to "ls=ls --color=auto".
What I found:
In the file ~/.bashrc, the call to ~/.bash_aliases is before setting the
alias "ls=ls --color=auto". The order of these steps is an error as the
.bash_aliases file should override any and all system-set aliases.
Recommended fix:
+++ Modify the file /etc/skel/.bashrc from the following
----cut-----
# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.
#if [ -f ~/.bash_aliases ]; then
# . ~/.bash_aliases
#fi
# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
eval "`dircolors -b`"
alias ls='ls --color=auto'
#alias dir='dir --color=auto'
#alias vdir='vdir --color=auto'
#alias grep='grep --color=auto'
#alias fgrep='fgrep --color=auto'
#alias egrep='egrep --color=auto'
fi
----cut----
+++ Change to the following:
----cut----
# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
eval "`dircolors -b`"
alias ls='ls --color=auto'
#alias dir='dir --color=auto'
#alias vdir='vdir --color=auto'
#alias grep='grep --color=auto'
#alias fgrep='fgrep --color=auto'
#alias egrep='egrep --color=auto'
fi
# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.
if [ -f ~/.bash_aliases ]; then
. ~/.bash_aliases
fi
----cut----
Putting the call to ~/.bash_aliases after setting the 'ls' alias allows
the user to override the alias to 'ls' as they see fit. Given that 'ls'
is a heavily used command it is also highly likely to be modified using
an alias.
Not really another bug, but while we are fixing minor bugs... Why is the
call to ~/.bash_aliases commented out by default? I see no issues in un-
commenting the call to ~/.bash_aliases in .bashrc by default thereby
saving admin's the step of un-commenting it themselves.
Attached is the modified file intended to replace /etc/skel/.bashrc. I
see no point in submitting a patch for a 100-line text file, so this was
the easy route.
** Affects: bash (Ubuntu)
Importance: Undecided
Status: New
--
bash aliases for 'ls' in ~/.bash_aliases file overridden by ~/.bashrc
https://bugs.launchpad.net/bugs/400686
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