tmux resurrect

Why did I not know about this until now?

https://github.com/tmux-plugins/tmux-resurrect

It restores all windows, all panes, all ssh sessions.

tmux black

tmux upgrade from 2.8 to 3.0...

# invisible separators
set-option -g pane-border-fg black
set-option -g pane-border-bg black
set-option -g pane-active-border-fg black
set-option -g pane-active-border-bg black

becomes

set -g pane-border-style bg=black,fg=black
set -g pane-active-border-style bg=black,fg=black

as mentioned in the changelog.

tmux

tmux is now the first command that I type after logging on to a system. I've become a huge fan of it!

Some shortcuts:
tmux at (to reconnect)
Ctrl-b % split screen right
Ctrl-b " split screen bottom
Ctrl-b o go to next panel
Ctrl-b q select a panel
Ctrl-b d detach