Install Xcode CLI Tools without GUI

install-xcode-cli-tools.sh

#!/bin/bash

# See http://apple.stackexchange.com/questions/107307/how-can-i-install-the-command-line-tools-completely-from-the-command-line

echo "Checking Xcode CLI tools"
# Only run if the tools are not installed yet
# To check that try to print the SDK path
xcode-select -p &> /dev/null
if [ $? -ne 0 ]; then
  echo "Xcode CLI tools not found. Installing them..."
  touch /tmp/.com.apple.dt.CommandLineTools.installondemand.in-progress;
  PROD=$(softwareupdate -l |
    grep "\*.*Command Line" |
    head -n 1 | awk -F"*" '{print $2}' |
    sed -e 's/^ *//' |
    tr -d '\n')
  softwareupdate -i "$PROD" --verbose;
else
  echo "Xcode CLI tools OK"
fi