Bash Customizing PS1 Show a git branch using PROMPT_COMMAND
Example
If you are inside a folder of a git repository it might be nice to show the current branch you are on. In ~/.bashrc or /etc/bashrc add the following (git is required for this to work):
function prompt_command {
# Check if we are inside a git repository
if git status > /dev/null 2>&1; then
# Only get the name of the branch
export GIT_STATUS=$(git status | grep 'On branch' | cut -b 10-)
else
export GIT_STATUS=""
fi
}
# This function gets called every time PS1 is shown
PROMPT_COMMAND=prompt_command
PS1="\$GIT_STATUS \u@\h:\w\$ "
If we are in a folder inside a git repository this will output:
branch user@machine:~$
And if we are inside a normal folder:
user@machine:~$
