My tmux config

.tmux.conf

# unbind some default keybindings
unbind C-b
# set prefix key to ctrl-a
set -g prefix C-a
# pass through a ctrl-a if you press it twice
bind C-a send-prefix

# vim style bindings for pane movement
bind -r h select-pane -L
bind -r j select-pane -D
bind -r k select-pane -U
bind -r l select-pane -R

# better mnemonics for splitting panes
bind | split-window -h
bind - split-window -v

# turn on 256 color support in tmux
set -g default-terminal "screen-256color"

# getting tmux to copy a buffer to system clipboard
set-option -g default-command "reattach-to-user-namespace -l zsh"
# use p to paste in tmux
unbind p
bind p paste-buffer
# use y to send the pasted text to system
bind y run "tmux save-buffer - | reattach-to-user-namespace pbcopy"
bind -t vi-copy Escape cancel
bind C-v run "reattach-to-user-namespace pbpaste | tmux load-buffer - && tmux paste-buffer"

# Use vim keybindings in copy mode
setw -g mode-keys vi

# Allow mouse scolling
setw -g mode-mouse off
set -g mouse-select-pane off
set -g mouse-resize-pane off
set -g mouse-select-window off

# Refresh config
bind r source-file ~/.tmux.conf \; display "Configuration Reloaded!"