git, display the current branch

[antyang26]

my book info: MacBook Pro (13-inch, M1, 2020) / Apple M1

1. when I checkout branch, I don't konw the branch

2. like this
   

3. so ,I search the net ,somebody do like this in .bash_profile
   function git_branch {
   branch="git branch 2>/dev/null | grep "^*" | sed -e "s/^* //""
   if [ "${branch}" != "" ];then
   if [ "${branch}" = "(no branch)" ];then
   branch="(git rev-parse --short HEAD...)"
   fi
   echo " ($branch)"
   fi
   }
   export PS1='u@h [33[01;36m]W[33[01;32m]$(git_branch)[33[00m] $ '

4. I do ,then I run source .bash_profile to restart it
   and get the result like this
   

5. and the file don't restart , what should I do?

[isc-tleavitt]

@antyang26, I think one possible issue is the use of single quotes (rather than double quotes) on the export PS1... line at the end. If changing that doesn't fix it, I'd try another solution like https://coderwall.com/p/fasnya/add-git-branch-name-to-bash-prompt .

Also, generally, there are probably better places than this to get answers to generic git questions.