(Mac) -bash: __git_ps1: command not found

Question

I'm trying to change my command promt in terminal. I keep getting the error: `-bash: __git_ps1: command not found` I've tried it just by typing it into the terminal as is: `__git_ps1`. I've also tried it out in the `.bash_profile` ``` if [ -f ~/.git-completion.bash ]; then source ~/.git-completion.bash export PS1='[\W]$(__git_ps1 "(%s)"): ' fi ``` As you might be able to see/tell, yes, I do have the auto-completion installed and it does work great! I came across this question: " PS1 env variable does not work on mac " which gives the code `alias __git_ps1="git branch 2>/dev/null | grep '*' | sed 's/* $.*$/(\1)/'"` So I add it to my `.bash_profile` hoping that it will change something. Well, it did. It just changed the error output. Here's the `.bash_profile` with the addition: ``` alias __git_ps1="git branch 2>/dev/null | grep '*' | sed 's/* $.*$/(\1)/'" if [ -f ~/.git-completion.bash ]; then source ~/.git-completion.bash export PS1='[\W]$(__git_ps1 "(%s)"): ' fi ``` And now here'…

Accepted Answer

You've installed the version of `git-completion.bash` from `master` - in git's development history this is after a commit that split out the `__git_ps1` function from the completion functionality into a new file (`git-prompt.sh`). The commit that introduced this change, which explains the rationale, is af31a456.

I would still suggest that you just source the version of `git-completion.bash` (or `git-prompt.sh`) that is bundled with your installation of git.

However, if for some reason you still want to use this functionality by using scripts separately downloaded from `master`, you should download `git-prompt.sh` similarly:

```
curl -o ~/.git-prompt.sh \
    https://raw.githubusercontent.com/git/git/master/contrib/completion/git-prompt.sh
```

... and add the following line to your `~/.bash_profile`:

```
source ~/.git-prompt.sh
```

Then your `PS1` variable that includes `__git_ps1 '%s'` should work fine.

Geoff reported 10/13/12 adding the following to their `.bash_profile` worked while others did not:

```
if [ -f ~/.git-prompt.sh ]; then
  source ~/.git-prompt.sh
  export PS1='Geoff[\W]$(__git_ps1 "(%s)"): '
fi
```

(Mac) -bash: __git_ps1: command not found

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