Send SMS from iMessage (Textual Mac IRC Client)

Send SMS from iMessage

1) find the service id for SMS messages (1st is iMesssage, 2nd is SMS)

tell application "Messages"
    get services
end tell

2) create send SMS script (existing conversation must exist in messages)

tell application "Messages"
    set serviceID to "service id from step #1"
    send "Test Message" to buddy "+14125551212" of service id serviceID
end tell

3) save & test from command line

osascript SendSMSMessage.applescript