vagrant のVM内で git で ブランチ名を表示させたい。
$ curl -o ~/.git-prompt.sh https://raw.githubusercontent.com/git/git/master/contrib/completion/git-prompt.sh
$ chmod a+x ~/.git-prompt.sh
$ vi .bash_profile
-------------------------------
## Git
# Read script
source $HOME/.git-prompt.sh
# Show information to prompt
GIT_PS1_SHOWDIRTYSTATE=1
GIT_PS1_SHOWUPSTREAM=1
GIT_PS1_SHOWUNTRACKEDFILES=
GIT_PS1_SHOWSTASHSTATE=1
# Terminal
export PS1='\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\u@\h:\w\[\033[1;30m\]$(__git_ps1)\[\033[0m\] \$ '
-------------------------------
$ source .bash_profile