share existing tmux session [duplicate]

Question

I have a tmux session already running. I have created it just with

tmux

now I can leave the session and re-enter with

tmux a -t 0

how can I share this session with other users? Usually one has to create the session with -S option, but I haven't. Is there a way to share my session?

Answer 1

You can use tmux grouped session.

First, create initial session, change its name to share:

$ tmux
$ tmux list-session
0: 1 windows (created Wed Aug 27 00:14:05 2014) [80x23] (attached)   
$ tmux rename-session -t 0 share 
$ tmux list-session
share: 1 windows (created Wed Aug 27 00:14:05 2014) [80x23] (attached)

Then, from other client, you simply add -t option and grouped session name (in this example, it's share) to tmux new-session command:

$ tmux new-session -t share -s cuonglm

-s option set the session name. If other user, i.e wiso, want to attach grouped session, he simply do:

$ tmux new-session -t share -s wiso

From man tmux:

If -t is given, the new session is grouped with target-session. This means they share the same set of windows - all windows from target-session are linked to the new session and any subsequent new windows or windows being closed are applied to both sessions. The current and previous window and any session options remain independent and either session may be killed without affecting the other. Giving -n or shell-command are invalid if -t is used.