To record the Android screen using the native adb commands and then downloading it from the device sd card to the local machine

AndroidScreenRecording

#Check if an argument was supplied
if [ -z "$1" ]
  	then
    	echo "No argument supplied, please provide video name"
	else
	   	# start recording
		adb shell screenrecord --bit-rate 6000000 /sdcard/$1.mp4 &
 
		# Get its PID
		PID=$!
 
		# Upon a key press
		read -p "Press [Enter] to stop recording..."
 
		# Kills the recording process
		kill $PID
 
		# Wait for 3 seconds for the device to compile the video
		sleep 3
 
		# Download the video
		adb pull /sdcard/$1.mp4
 
		# Delete the video from the device
		adb shell rm /sdcard/$1.mp4
 
		# Kill background process incase kill PID fails
		trap "kill 0" SIGINT SIGTERM EXIT
fi