A quick script to update a self hosted Ghost installation (must have root access)

update-ghost.sh

# update server software
apt-get update

# go to web root
cd /var/www/

# Remove any previous zips
rm ghost*.zip

# download the latest version of ghost
curl -LOk https://ghost.org/zip/ghost-latest.zip

# Stop ghost from running
service ghost stop

# Remove ghost core
rm -rf ghost/core

# Unzip and copy updated files
# -uo overwrites only where necessary
unzip -uo ghost*.zip -d ghost

# Reset permissions
chown -R ghost:ghost ghost/*

# Cleanup zip
rm ghost*.zip

# Go into ghost folder
cd ghost

# Install any new dependencies
npm install --production

# Start ghost service again
service ghost start