docker_app=$(find /Applications/ \ -name "Docker.app" -maxdepth 1 -mindepth 1 -type d) if [ -z "$docker_app" ]; then echo 'Install Docker Desktop for Mac OS X' curl -o ~/Downloads/Docker.dmg -sL https://download.docker.com/mac/stable/Docker.dmg hdiutil verify ~/Downloads/Docker.dmg hdiutil attach ~/Downloads/Docker.dmg -nobrowse cp -R /Volumes/Docker/Docker.app /Applications/ hdiutil detach /Volumes/Docker rm ~/Downloads/Docker.dmg sudo /Applications/Docker.app/Contents/MacOS/Docker --quit-after-install --unattended fi