tmux.conf

# 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 %

# Enable mouse control (clickable windows, panes, resizable panes)
# http://stackoverflow.com/questions/35016458/how-to-write-if-statement-in-tmux-conf-to-set-different-options-for-different-t

if-shell '[ $(echo "$(tmux -V | cut -d" " -f2) >= 2.1" | bc) -eq 1 ]' \
    'set -g mouse on' \
    'set -g mode-mouse on; set -g mouse-resize-pane on; set -g mouse-select-pane on; set -g mouse-select-window on'

set-option -g status on
set-option -g status-interval 2
set-option -g status-justify "centre"
set-option -g status-left-length 60
set-option -g status-right-length 90
set-option -g status-left "#(~/.rc/tmux-powerline/powerline.sh left)"
set-option -g status-right "#(~/.rc/tmux-powerline/powerline.sh right)"

# Pane navigation (iTerm2 style)
bind-key -n M-A-Left select-pane -L
bind-key -n M-A-Right select-pane -R
bind-key -n M-A-Down select-pane -D
bind-key -n M-A-Up select-pane -U

# Pane navigation (vim style)
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R