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Sunday, 9 February 2020

How to add Git branch in your linux terminal prompt (PS1)

It would be great if we can see the git branch name on terminal whenever working with git, it will save us little time to play around some other git command rather than  git branch command.

We can set up our terminal shell to show the git branch as well by modifying the variable PS1. Your user home directory have a hidden file name .profile (dot profile) which have this variable, you need to tweak it little bit to fit in our ask.

To get which shell you are using, execute below command -
echo $SHELL

If you are using Korn Shell (ksh):

# Setting up PS1 value
export HOST=`hostname -a`
export GIT_BRANCH="$(print "\033[35m (\$(git branch 2>/dev/null | grep '^*' | colrm 1 2)) \033[00m")"
export PS1="\${USER}@\${HOST}:\${PWD}${GIT_BRANCH}\$ "


If you are using Bash Shell (bash):

# Setting up PS1 value
parse_git_branch() {git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'}
export PS1="[\u@\h \[\e[32m\]\W \[\e[91m\]\$(parse_git_branch)\[\e[00m\]]$ "


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