record.bash

#!/bin/bash 

# don't forget to include ADB in your path
# for example, in your ~/.bashrc, somewhere near the top
# export PATH=$PATH:/path/to/android-sdk/sdk/platform-tools

# check if there is a filename
if [ -z "$1" ]; then 
	echo usage: $0 filename
	exit
fi

FILENAME=$1

# what to show when recording is stopped
control_c() {
	echo -en "\n *** Stopping recording! *** \n"
	echo -en "\n *** Use an Android File Explorer to access your video $FILENAME files on the device! *** \n"
	exit $?
}

# trap the control-c interrupt
trap control_c SIGINT

# http://en.wikipedia.org/wiki/Bit_rate
BITRATE=9000000
COUNTER=0
MAXLENGTH=20

echo "At anytime, CTRL+C to stop the recording!"

# run the loop
while [  $COUNTER -lt $MAXLENGTH ]; do
	TARGET=$1-$COUNTER.mp4
	# echo "adb shell screenrecord --bit-rate "$BITRATE" --time-limit 180 /sdcard/"$TARGET
	adb shell screenrecord --bit-rate $BITRATE --time-limit 180 "/sdcard/"$TARGET
	let COUNTER=COUNTER+1 
done