.tmux.conf

new-session

# Version-specific commands [grumble, grumble]
# See: https://github.com/tmux/tmux/blob/master/CHANGES
run-shell "tmux setenv -g TMUX_VERSION $(tmux -V | cut -c 6-)"

if-shell -b '[ "$(echo "$TMUX_VERSION < 2.1" | bc)" = 1 ]' \
  "set -g mouse-select-pane on; set -g mode-mouse on; \
    set -g mouse-resize-pane on; set -g mouse-select-window on"

# In version 2.1 "mouse" replaced the previous 4 mouse options
if-shell -b '[ "$(echo "$TMUX_VERSION >= 2.1" | bc)" = 1 ]' \
  "set -g mouse on"

# UTF8 is autodetected in 2.2 onwards, but errors if explicitly set
if-shell -b '[ "$(echo "$TMUX_VERSION < 2.2" | bc)" = 1 ]' \
  "set -g utf8 on; set -g status-utf8 on; set -g mouse-utf8 on"

# bind-key syntax changed in 2.4
if-shell -b '[ "$(echo "$TMUX_VERSION < 2.4" | bc)" = 1 ]' \
  "bind-key -t vi-copy v   begin-selection; \
   bind-key -t vi-copy V   select-line; \
   bind-key -t vi-copy C-v rectangle-toggle; \
   bind-key -t vi-copy y   copy-pipe 'xclip -selection clipboard -in'"

# Newer versions
if-shell -b '[ "$(echo "$TMUX_VERSION >= 2.4" | bc)" = 1 ]' \
  "bind-key -T copy-mode-vi v   send -X begin-selection; \
   bind-key -T copy-mode-vi V   send -X select-line; \
   bind-key -T copy-mode-vi C-v send -X rectangle-toggle; \
   bind-key -T copy-mode-vi y   send -X copy-pipe-and-cancel 'xclip -selection clipboard -in'"

#nested tmux
unbind C-a
set -g prefix C-b
set -g status-bg colour40
setw -g window-status-current-bg colour40
bind -n C-t new-window -a
bind -n S-left  prev
bind -n S-right next
bind -n S-C-left  swap-window -t -1
bind -n S-C-right swap-window -t +1
bind -n M-F11 set -qg status-bg colour25
bind -n M-F12 set -qg status-bg colour40
bind -n S-up \
	send-keys M-F12 \; \
	set -qg status-bg colour25 \; \
	unbind -n S-left \; \
	unbind -n S-right \; \
	unbind -n S-C-left \; \
	unbind -n S-C-right \; \
	unbind -n C-t \; \
	set -qg prefix C-a
bind -n S-down \
	send-keys M-F11 \; \
	set -qg status-bg colour40 \; \
	bind -n S-left  prev \; \
	bind -n S-right next \; \
	bind -n S-C-left swap-window -t -1 \; \
	bind -n S-C-right swap-window -t +1 \; \
	bind -n C-t new-window -a -c "#{pane_current_path}" \; \
	set -qg prefix C-b