Forked from https://gist.github.com/ryangreenberg/869658 to make it work with pulling from current branch

gistfile1.sh

#!/bin/sh

# Shortcut for git pull origin [current_branch]
# Mnemonic: plb for "pull branch"
if git rev-parse --git-dir > /dev/null 2>&1 # Current directory is a git repository
then
  # http://stackoverflow.com/questions/1593051/
  branch_name="$(git symbolic-ref HEAD 2>/dev/null)" ||
  branch_name="(unnamed branch)"     # detached HEAD
  branch_name=${branch_name##refs/heads/}
  echo "git pull origin $branch_name"
  git pull origin $branch_name "$@"
else
  echo "Error: The current directory does not appear to be a git repository"
fi