tmux.conf

# screen style prefix
set-option -g prefix C-a
bind-key C-a last-window
bind-key a send-keys C-a

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

# start numbering at 1
set -g base-index 1

# use 256 color
set -g default-terminal "screen-256color"

# vim-style navigation
set-window-option -g mode-keys vi
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# fix vi mode-keys
if-shell "[ `tmux -V | awk '{print ($2 < 2.4)}'` = 1 ]" \
    "bind-key -t vi-copy v begin-selection; \
     bind-key -t vi-copy y copy-selection" \
    "bind-key -Tcopy-mode-vi v send -X begin-selection; \
     bind-key -Tcopy-mode-vi y send -X copy-selection-and-cancel"

# allow mouse mode
if-shell "[ `tmux -V | awk '{print ($2 < 2.1)}'` = 1 ]" \
    "set -g mouse-resize-pane on; \
     set -g mouse-select-pane on; \
     set -g mouse-select-window on; \
     set -g mode-mouse on" \
    "set -g mouse on"

# fix default-path for new windows
if-shell "[ `tmux -V | awk '{print ($2 >= 1.9)}'` = 1 ]" \
    "bind c new-window      -c \"#{pane_current_path}\"; \
     bind v split-window -h -c \"#{pane_current_path}\"; \
     bind b split-window    -c \"#{pane_current_path}\"; \
     bind % split-window -h -c \"#{pane_current_path}\"; \
     bind '\"' split-window -c \"#{pane_current_path}\"" \
    "bind v split-window -h; bind b split-window"