Git completion and PS1 not working: "__git_ps1: command not found" on "sudo -s" or "sudo su" on Ubuntu 12.04
bash, bash-completion, git
Solution
When you do `sudo su` it won't source the users `.bashrc`. The PS1 is inherited from the user you did the `sudo su` from but the new shell doesn't know where it can find `___git_ps1`
You need to simulate a login by executing `sudo su -l`
Problem
I installed git and git-flow completion adding these line to .bashrc of root and a normal_user on a Ubuntu 12.04 machine: ``` source /etc/git-completion.bash source /etc/git-flow-completion.bash GIT_PS1_SHOWUPSTREAM="verbose" GIT_PS1_SHOWDIRTYSTATE=true PS1='\[\033[32m\]\u@\h\[\033[00m\]:\[\033[34m\]\w\[\033[31m\]$(__git_ps1)\[\033[00m\]\$ ' ``` When I log as root or normal_user git completion works. However if I use "sudo -s" or "sudo su" git completion is not working and I continually get "__git_ps1: command not found" each time I press return. I tried to remove the "source" commands and use "apt-get install bash-completion" (bash-completion was already installed). So even without the 2 source I get the exact same behavior. Anybody knows what the problem is and how to make it work?