ADB Screenshotter for Mac, Usage (in Terminal): "./adbscreenshot-mac.sh <optional filename>" without quotes. Requires Android Studio, Check the filename<.png> you choose is not present in Desktop. The default is "screen<.png>".

adbscreenshot-mac.bash

#!/bin/bash

if [ -e ~/Library/Android/sdk/platform-tools/adb ]; then
	echo
	echo ADB is installed. Go ahead.
	echo
	echo
else
	echo
	echo ADB, platform-tools or SDK is not installed. Install it and try again.
	echo
	exit
fi


if [ -z "$1" ]; then
	echo Variable is empty, using \"screen\" as the filename...
	echo
	ADAMM="screen"
else
	echo Using \"$1\" as the filename...
	echo
	ADAMM="$1"
fi


FILENAME="$ADAMM.png"


if [ -e ./$FILENAME ]; then
	rm ./$FILENAME
	echo Starting ADB Screenshotter...
	echo
	echo
else
	echo Starting ADB Screenshotter...
	echo
	echo
fi


sleep 0.560
~/Library/Android/sdk/platform-tools/adb shell screencap -p /sdcard/$FILENAME
echo TAKEN THE SCREENSHOT
sleep 0.840
echo
~/Library/Android/sdk/platform-tools/adb pull /sdcard/$FILENAME ~/Desktop/
echo PULLED THE SCREENSHOT TO DESKTOP
sleep 0.980
echo
~/Library/Android/sdk/platform-tools/adb shell rm /sdcard/$FILENAME
echo REMOVED THE SCREENSHOT FROM PHONE/TABLET
sleep 1.080
echo
exit