~/.tmux.conf for iTerm2

.tmux.conf

###########################
# ~/.tmux.conf for iTerm2 #
#                         #
# by Jovian Lin           #
###########################

##########
# Basics #
##########

# Initial setup
set -g default-terminal xterm-256color
set -g status-keys vi

# remap prefix from 'C-b' to 'C-a'
unbind C-b
set-option -g prefix C-a
bind-key C-a send-prefix

# split panes using | and -
bind \ split-window -h
bind - split-window -v
unbind '"'
unbind %

# reload config file (change file location to your the tmux.conf you want to use)
bind-key r source-file ~/.tmux.conf \; display-message "tmux.conf reloaded."

# Easy clear history
bind-key l clear-history \; display-message "clear-history"

##############
# Navigation #
##############

# Use Alt-arrow keys without prefix key to switch panes
bind -n M-Left  select-pane -L
bind -n M-Right select-pane -R
bind -n M-Up    select-pane -U
bind -n M-Down  select-pane -D

# Use Alt-Shift-arrow
bind -n M-S-Left  resize-p -L 2
bind -n M-S-Right resize-p -R 2
bind -n M-S-Up    resize-p -U 2
bind -n M-S-Down  resize-p -D 2

# Allow the arrow key to be used immediately after changing windows.
set-option -g repeat-time 0

# Shift-arrow to switch windows
bind -n S-Left  previous-window
bind -n S-Right next-window

# Enable Mouse Support
# More: http://www.rushiagr.com/blog/2016/06/16/everything-you-need-to-know-about-tmux-copy-pasting/
set -g mouse on