Connect/debug android with adb (Android Debug Bridge) commands in terminal easily, with one or many devices/emulators.

If you are developing/debugging an android app, sometimes you may want to run some commands from the terminal (using adb). If you have one device/emulator attached, then you are okay to run commands like adb install -r app.apk.

But when you do have several devices attached, that command will not work. You would have to specify the ID of the specific device you want to run a command on: adb {deviceid} install -r app.apk. Now, to get a list of attached devices, you simply run the command: adb devices

$ adb devices
List of devices attached
emulator-5556 device product:sdk_google_phone_x86_64 model:Android_SDK_built_for_x86_64 device:generic_x86_64
emulator-5554 device product:sdk_google_phone_x86 model:Android_SDK_built_for_x86 device:generic_x86
0a388e93      device usb:1-1 product:razor model:Nexus_7 device:flo

This is why I wrote below bash script:

	#!/bin/bash
	devices=(`adb devices | grep -v devices | grep device | cut -f 1`)
	devicesCount=${#devices[@]}
	devicesToUse=()
	if [ $devicesCount -eq 0 ]
	then
	echo "No attached devices.";
	elif [ $devicesCount -eq 1 ]
	then
	name=`adb -s ${devices[0]} shell getprop ro.product.model`
	api=`adb -s ${devices[0]} shell getprop ro.build.version.sdk`
	version=`adb -s ${devices[0]} shell getprop ro.build.version.release`
	echo "One attached device.";
	read -p "Use \"$name [$version - API $api]\"?[yes/no] (default: yes): " useDevice
	useDevice=${useDevice,,}
	if [ "$useDevice" = "yes" ] || [ -z "$useDevice" ]
	then
	devicesToUse=(${devices[0]})
	fi
	else
	echo "$devicesCount attached devices."
	defaultDeviceName=`adb -s ${devices[0]} shell getprop ro.product.model`
	defaultDeviceApi=`adb -s ${devices[0]} shell getprop ro.build.version.sdk`
	defaultDeviceVersion=`adb -s ${devices[0]} shell getprop ro.build.version.release`
	echo "Which device do you want to use? (default: \"$defaultDeviceName [$defaultDeviceVersion - API $defaultDeviceApi]\")"
	for i in ${!devices[@]};
	do
	device=${devices[$i]}
	name=`adb -s $device shell getprop ro.product.model`
	api=`adb -s $device shell getprop ro.build.version.sdk`
	version=`adb -s $device shell getprop ro.build.version.release`
	echo "$(($i+1))) $name [$version - API $api]"
	done
	echo "$(($devicesCount+1))) all"
	read -p "Choose a number: " deviceIndex
	deviceIndex=$((${deviceIndex,,}-1))
	if [ $deviceIndex -gt 0 ] && [ $deviceIndex -lt $devicesCount ];
	then
	devicesToUse=(${devices[$deviceIndex]})
	elif [ $deviceIndex -eq $devicesCount ]
	then
	devicesToUse=("${devices[@]}")
	else
	devicesToUse=(${devices[0]})
	fi
	fi
	devicesToUseCount=${#devicesToUse[@]}
	if [ $devicesToUseCount -gt 0 ]
	then
	for i in ${!devicesToUse[@]};
	do
	device=${devicesToUse[$i]}
	name=`adb -s $device shell getprop ro.product.model`
	api=`adb -s $device shell getprop ro.build.version.sdk`
	version=`adb -s $device shell getprop ro.build.version.release`
	echo "Using \"$name [$version - API $api]\""
	adb -s $device "$@"
	done
	fi

view raw debug-android-from-terminal.sh hosted with ❤ by GitHub

This script allows you to connect/debug android with adb commands in terminal easily, with one or many devices/emulators.

bash <(curl -s https://gist.githubusercontent.com/McKabue/ac124f736085e9650fdbf63b1d9ca5ab/raw/ccfba9fad913baebc1f08cbcd7e525cc3827dd5a/debug-android-from-terminal.sh) install -r app.apk

This will prompt you to run the command on a specific device, or all of them.