put it into your ~/.bash_profile. Allow you to create Pull Request faster.

gistfile1.sh

function pr () {
  local repo=`git remote -v | grep "origin" | grep -m 1 "(push)" | sed -e "s/.*github.com[:/]\(.*\)\.git.*/\1/"` 
  local branch=`git name-rev --name-only HEAD`
  echo "... pushing current branch \"$branch\" in \"$repo\" to github" &&
  $(git push origin $branch) &&
  echo "... push succeed" &&
  target_branch=$1
  echo "... creating pull request for branch \"$branch\" in \"$repo\"" &&
  if [[ ! -z $target_branch ]]; then
    open https://github.com/$repo/pull/new/$target_branch...$branch
  else
    open https://github.com/$repo/pull/new/$branch
  fi
}
1
export -f pr

so you could do pr in your current branch

in your terminal
pr
create PR against master

pr staging
create PR against staging