Rooted phone - sending SMS message via command line
You should be able to call the messaging intent with

am start -a android.intent.action.VIEW "sms:numberhere" -e "sms_body" "hello"


Using the intent command as described here:

http://learnandroid.blogspot.com/2008/01/run-android-application-from-command.html

https://stackoverflow.com/questions/4967448/send-sms-in-android