Tmux is a productivity enhancement tool that enables people to get rid of using mouse.
In Tmux we are concerning about 3 elements, which are session, window and pane. Let's see the basic operations on them.

Session management

• create session
  tmux new [-s session-name]

• attach session
  tmux attach [-t session-name]

• check available sessions
  tmux ls

• rename seesion
  prefix $

Window management

• create window
  prefix c

• rename window
  prefix ,

• kill window
  prefix &

• navigate window
  prefix 0..9
  long press prefix + L prefix + H

Pane management

• create pane vertical
  prefix %

• create pane horizontal
  prefix "

• kill pane
  prefix C-d

• resize pane
  prefix C-arrow
prefix C-L
prefix C-K
prefix C-H
prefix C-J

Enjoy mouse free development with Tmux. (update continuously...)

Reference

1. Tmux configuration is cloned from .tmux