Bash script to check for updates through GIT

check_git_update.sh

#!/bin/bash

BRANCH="master"

git remote update

//Were are we locally
LAST_UPDATE=`git show --no-notes --format=format:"%H" $BRANCH | head -n 1`

//Were are we remote
LAST_COMMIT=`git show --no-notes --format=format:"%H" origin/$BRANCH | head -n 1`

//IF we don't match we should update local
if [ $LAST_COMMIT != $LAST_UPDATE ]; then
        echo "Updating your branch $BRANCH"
        git pull --no-edit
else
        echo "No updates available"
fi