1-prep-os.sh

#!/usr/bin/env

###############################################################################
# Update OS and install Xcode Tools                                           #
###############################################################################


# Ask for the administrator password upfront
sudo -v

# Keep-alive: update existing `sudo` time stamp until `1-prep-os.sh` has finished
while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &

# Update the OS
echo "------------------------------"
echo "Updating OS.  If this requires a restart, run the script again."
# Install all available updates
sudo softwareupdate --install --all --verbose
# Install only recommended available updates
#sudo softwareupdate -ir --verbose

echo "------------------------------"
echo "Installing Xcode Command Line Tools."
# Install Xcode command line tools
xcode-select --install

echo "Done."