For the status information prompt to work, we also need to source another file, git-prompt.sh, which is usually distributed with the Git installation and located in the same directory as the completion file.

In your .bashrc or .zshrc file, add the following code snippet, again depending on your shell and the location of the git-prompt.sh file:

if [ -f /etc/bash_completion.d/git-prompt.sh ]; then
    source /etc/bash_completion.d/git-prompt.sh
fi

To make use of the command prompt, we must change the PS1 variable; usually this is set to something like this:

PS1='\u@\h:\w\$ '

The preceding command shows the current user, an @ sign, the host name, the current working directory relative to the user's home directory, and finally a $ character:

aske@yggdrasil:~/cookbook-tips-tricks$

We...