Command prefix is C-b. Commands: d detach c create new terminal n next terminal p previous terminal r refresh screen t set window name 0-9 select window There is one default server process per user which puts its socket in /tmp/tmux-UID. It is created the first time tmux is run and subsequent invocations will connect to the same server. The server holds multiple sessions, call tmux with "-n " to create a session or attach to an existing session. All the sessions may be listed with -l, or the windows of a single session with "-ln ". Sessions are destroyed when no windows remain attached to them. Another server process can be used by specifying an alternative socket path with "-s " but it shouldn't normally be required. You can set the window title (listed in -l), using the \e] escape sequence. For example: $ echo -n \\033]0;My Title\\007 There is currently no method for setting the window name (what will eventually be shown in the status bar). You might get message "couldn't find server" after a crash, in this case you must remove the /tmp/tmux-`id -u` file manually.