Check last git commit id has changed

check.sh

#!/bin/bash

echo 'Checking last commit id'

# Change repo to monitor
GIT_REPO=https://github.com/torvalds/linux.git

LATEST_COMMIT_LOG=$(git ls-remote $GIT_REPO refs/heads/master)
LAST_FETCHED_COMMIT_LOG=$(cat /tmp/last-commit.log 2>/dev/null)

if [ "$LATEST_COMMIT_LOG" != "$LAST_FETCHED_COMMIT_LOG" ]
then
  echo 'different!'
  # do stuff
fi

yum install inotify-tools

while true; do
inotifywait -e close_write /etc/nginx/nginx.conf | sudo service nginx restart;
done