ShellMS

ShellMS is the simplest and easiest ADB Shell Messaging Application. If you
don't know what ADB or SDK is you definitely don't need this app. For the others
it's useful tool to speed up messaging when you're working on your computer.

Usage:

* with mobile phone numbers: adb shell am startservice --user 0 -n com.android.shellms/.sendSMS -e contact +123456789 -e msg "Message"
* with display names from phone: adb shell am startservice --user 0 -n com.android.shellms/.sendSMS -e contact "Contact's DISPLAY NAME" -e msg "MSG"