This script adds android licenses hash to be able to update/install sdk package on the command line (android / sdkmanager tools) without having to manually input 'y' to accept the license terms. Credits to http://stackoverflow.com/a/38381577/526660

add-android-sdk-licenses.sh

#!/usr/bin/env bash
# 
# This script adds android licenses hash to be able to update/install sdk package on the 
# command line (android / sdkmanager tools) without having to manually input 'y' to accept the
# license terms.
#
# Prerequisite: ANDROID_HOME env var must be set.
#
# Tested on MacOS 10.12.3
#

if [ -f ${ANDROID_HOME}/licenses/android-sdk-license ]; then
  echo "Android SDK License file already exists : ${ANDROID_HOME}/licenses/android-sdk-license"
else
  echo "Android SDK License file will be created : ${ANDROID_HOME}/licenses/android-sdk-preview-license"
  echo "echo -e \"\n8933bad161af4178b1185d1a37fbf41ea5269c55\" > \"${ANDROID_HOME}/licenses/android-sdk-license\""
  
  echo -e "\n8933bad161af4178b1185d1a37fbf41ea5269c55" > "${ANDROID_HOME}/licenses/android-sdk-license"
  
  if [ $? -ne 0 ]; then
	  echo "interrupted : creating android sdk license file error"
	  exit -1
  fi
fi

if [ -f ${ANDROID_HOME}/licenses/android-sdk-preview-license ]; then
  echo "Android Preview SDK License file already exists : ${ANDROID_HOME}/licenses/android-sdk-preview-license"
else
  echo "Android Preview SDK License file will be created : ${ANDROID_HOME}/licenses/android-sdk-preview-license"
  echo "echo -e \"\n84831b9409646a918e30573bab4c9c91346d8abd\" > \"${ANDROID_HOME}/licenses/android-sdk-preview-license\""
  
  echo -e "\n84831b9409646a918e30573bab4c9c91346d8abd" > "${ANDROID_HOME}/licenses/android-sdk-preview-license"
  
  if [ $? -ne 0 ]; then
	  echo "interrupted : creating android sdk preview license file error"
	  exit -2
  fi
fi