
Installed via the Software Manager without difficulty. The difficulty lies in understanding what is happening. My problem was with long lines of output being folded at the console window boundary, wrecking the layout of tabular results. A friend's guidance was to add alias wide='tmux new-session \\; resize-window -x 666 -y $(tput lines)' to my .bashrc file, then, in the console, command "wide". The console window appears unchanged, but now when I run my prog. its broad tables are not folded (yay!) while all else seems much as before. On stopping my prog. the next-input prompt appears as usual, but on "exit" it vanished only to re-appear again. The second "exit" ends the original console session. Via entries in file ~/.tmux.conf, scrolling left and right can be enabled, and perhaps other useful behaviour once I figure out what and how.
Love this ever since I found it on 'Learn Linux TV' on youtube. I have an ultrawide and I'm using this to help me become more proficient with the CLI. I can remote SSH, manage LXC's, rean man pages, run local commands, and more, all in the same window - or navigate multiple windows!
with tmux you can run persistant sessions on a remote terminal; if you have a big screen it can be very handy to split your terminal into panes. for example read man pages on the left, and try out the information on the commandline in the right pane.
I have a tmux session on a server from my job... since 8 months ago and it still runs smoothly