better bash settings for git usage
check out git-prompt.sh to somewhere in your local machine. For example
cd ~/.bash/
git clone https://github.com/mocheng/gitbash
Then, in your ~/.bashrc, add below lines
source ~/.bash/gitbash/git-prompt.sh
PS1="\u@:\w\[\e[1;32m\]\$(parse_git_branch_or_tag)\[\e[0m\]$"
Now, your have current branch name displayed in your prompt.