Tips-&-Tricks.md

@@ -180,6 +180,34 @@ Adjust Internal Microphone volume in `Settings` > `Sound` for optimal clarity.
 
 While Mobile is disabled, either by the settings toggle or by the kill switch, granular Mobile Settings are inaccessible. Also, at the moment, saved messages in Chats cannot be viewed, nor new messages composed; a fix for this is being worked on, and the issue does not affect other installed messaging apps, and also not other chat protocols used by chatty (e.g xmpp), if any.
 
+### Send SMS (text message) from terminal
+
+At the current time, this is a bit untidy but it can be done.
+
+```
+# Pause chatty
+killall -STOP chatty
+
+# Create SMS and save its id
+id=`sudo mmcli -m any --messaging-create-sms="text='your-content',number='dest-phone-number'"`
+# id is e.g. Successfully created new SMS: /org/freedesktop/ModemManager1/SMS/6
+
+id=${id/?*\/*\/*\/*\/*\/}
+# strip that back to just the number e.g. 6
+
+echo id = $id
+
+# Send SMS
+sudo mmcli -s $id --send
+
+# Resume chatty
+killall -CONT chatty
+```
+
+In my testing, the dest-phone-number did not have to be a full international-format mobile number. Your mileage may vary.
+
+Unless you are a bash wiz it would be best to avoid any quote characters (`"') in your-content.
+
 ## Mail (Geary)
 
 * If the incoming mail server or the outgoing mail server require a port number then specify the hostname as `hostname:portnumber`