tmux is a competent terminal multiplexer that allows us to control many terminal sessions from a single window. We can save time and increase efficiency by configuring our shell to automatically open a tmux session, especially if we frequently operate with lots of terminal windows. This configuration guarantees that our terminal sessions always begin in tmux, providing us access to all of its great features from the very beginning.

In this tutorial, we’ll look at how to configure the default shell to start a tmux session on startup.