My TMux Setup

TMux has been a game changer. Unlike screen, I’ve found the need for very little tinkering, and it works quite well right out of the box.

That said, it’s not perfect, so here are a few small changes I made.

New Prefix

I hated Control-A for my prefix during my GNU Screen days, as most terminals use Emacs configurations, and Control-A is a quick-skip to the front of the command line, which is very useful. That said, Control-B is nearly as awful, since it’s so far away hard to hit. So I set it to Control-S, as I don’t use that for anything really.

set-g prefix C-s
unbind-key C-b
bind-key C-s send-prefix

Swapping Windows

Swapping windows has got to be easier. Why worry about whether a slot is taken by another window or not? Just do it, right?

bind-key -n C-S-Left swap-window -t -1
bind-key -n C-S-Right swap-window -t +1


Pretty self explanatory.

set -g default-terminal "screen-256color"

Renumbering / Renaming

Start numbering at 1, please.

set -g base-index 1

Renumber windows if they move around.

set-option -g renumber-windows on

Stop renaming after I rename them.

set-option -g allow-rename off


Handle it.

setw -g utf8 on

Restoring from Reboot

There is no native way to restore a detached TMux session after a reboot / shutdown. So the solution I’m presenting here is shamelessly stolen from a StackOverflow post.

This bash script allows you to save a session simply with tmux-session save, and after a reboot, simply use tmux-session restore. It saves it to ~/.tmux-session.