sdk_update.sh

#!/bin/bash

#this is a small script which updates Android SDK from command line. 
#Needs to be executed from Android SDK root

( sleep 5 && while [ 1 ]; do sleep 1; echo y; done ) | tools/bin/sdkmanager \
"tools" \
"platform-tools" \
"platforms;android-25" \
"build-tools;25.0.1" \
"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-beta4" \
"extras;google;m2repository" \
"extras;android;m2repository" \
"extras;google;google_play_services"