Make `git checkout <branch>` into a menu selection

gitcomenu.sh

OPS3=$PS3
echo There are multiple branchs in this repo. Please select the one you want to use
PS3='If you're not sure just choose "master" '

select br in $(git branch|sed -e '/^[* ] /s///'); do
  [[ -n $br ]] && git checkout $br &&
    break
done

PS3=$OPS3

# You can also put this in your git aliases
# com = !"select br in $(git branch|sed -e '/^[* ] /s///'); do [[ -n $br ]] && git checkout $br && break; done"