TMUX settings

Write the following to ~/.tmux.conf

# unbind default prefix and set it to ctrl-a
unbind C-b
set -g prefix C-a
bind C-a send-prefix

# make delay shorter
set -sg escape-time 0

#### key bindings ####

# reload config file
bind r source-file ~/.tmux.conf \; display ".tmux.conf reloaded!"

# quickly open a new window
bind N new-window

# synchronize all panes in a window
bind y setw synchronize-panes

# pane movement shortcuts (same as vim)
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# enable mouse support for switching panes/windows
set -g mouse on

#### copy mode : vim ####

# set vi mode for copy mode
setw -g mode-keys vi

# copy mode using 'Esc'
unbind [
bind Escape copy-mode

# start selection with 'space' and copy using 'y'
bind -t vi-copy 'y' copy-selection

# paste using 'p'
unbind p
bind p paste-buffer

Reference resources tmux guide