How can I adb install an apk to multiple connected devices?

Question

I have 7 devices plugged into my development machine.

Normally I do adb install and can install to just a single device.

Now

Answer 1

If you don't want use the devices that have not enabled adb; use this

Mac/Linux

adb devices | grep device | grep -v devices | awk '{print$1}' | xargs -I {} adb -s {} install path/to/yourApp.apk 

adb devices | grep device | grep -v devices | cut -sf 1 | xargs -I {} adb -s {} install path/to/yourApp.apk