We do this all the time, at-least for past 5 years or so while implementing our opensource project. We login to same server to do : #create a screen screen -

We do this all the time, at-least for past 5 years or so while implementing our opensource project. We login to same server to do : #create a screen screen -S chat #Both of us will join the screen: screen -x chat #Now we can see each other typing. Make typing easier do: write pts/<id> username #Make sure there is another login and use that pts <id> above. After we typed our lines, to indicate I'm waiting for his response. I'll adding 2 or 3 newlines. That's it ! :)Simple chat over ssh.