A bash script macOS to keep Homebrew, Mac App Store, Composer, and npm updated (including globally installed packages)

update.sh

#!/usr/bin/env bash

################################################################################
# Place this script wherever you like and create an alias (.zshrc or .bashrc):
#
#    alias update='sh ~/Scripts/update.sh'
#
# Then just run `update` to update:
#
#   - Homebrew
#   - Mac App Store apps (if you have the Mac App Store CLI installed)
#   - Composer, npm, and respective globally installed packages
#
# https://gist.githubusercontent.com/divspace/fdd9d374a74399191c67
################################################################################

sudo -v

while true; do
    sudo -n true
    sleep 60
    kill -0 "$$" || exit
done 2>/dev/null &

if [ $(command -v brew) ]; then
    if [ ! -d /Library/Caches/Homebrew/Casks ]; then
        mkdir -p /Library/Caches/Homebrew/Casks
    fi

    brew update --force
    brew upgrade
    brew cleanup
    brew doctor
fi

if [ $(command -v mas) ] && [ ! -z $(mas outdated) ]; then
    mas upgrade
fi

if [ $(command -v composer) ]; then
    composer self-update
    composer global update
fi

if  [ $(command -v npm) ]; then
    npm update -g
fi