set -g default-terminal "screen-256color"
-set -g utf8 on
set -g set-titles on
-set -g mouse-utf8 on
set -g mode-keys vi
-bind Escape copy-mode
-unbind p
-bind p paste-buffer
-bind -t vi-copy 'v' begin-selection
-bind -t vi-copy 'y' copy-selection
-bind -t vi-copy 'Space' halfpage-down
-bind -t vi-copy 'Bspace' halfpage-up
+bind-key Escape copy-mode
+unbind-key p
+bind-key p paste-buffer
+bind-key -T copy-mode-vi 'v' send-keys -X begin-selection
+bind-key -T copy-mode-vi 'y' send-keys -X copy-selection
+bind-key -T copy-mode-vi 'Space' send-keys -X halfpage-down
+bind-key -T copy-mode-vi 'Bspace' send-keys -X halfpage-up
# extra commands for interacting with the ICCCM clipboard
-bind C-c run "tmux save-buffer - | xclip -i -sel clipboard"
-bind C-v run "tmux set-buffer \"$(xclip -o -sel clipboard)\"; tmux paste-buffer"
+bind-key C-c run "tmux save-buffer - | xclip -i -sel clipboard"
+bind-key C-v run "tmux set-buffer \"$(xclip -o -sel clipboard)\"; tmux paste-buffer"
# easy-to-remember split pane commands
-bind | split-window -h
-bind - split-window -v
-unbind '"'
-unbind %
+bind-key | split-window -h
+bind-key - split-window -v
+unbind-key '"'
+unbind-key %
# moving between panes with vim movement keys
-bind h select-pane -L
-bind j select-pane -D
-bind k select-pane -U
-bind l select-pane -R
+bind-key h select-pane -L
+bind-key j select-pane -D
+bind-key k select-pane -U
+bind-key l select-pane -R
# moving between windows with vim movement keys
-bind -r C-h select-window -t :-
-bind -r C-l select-window -t :+
+bind-key -r C-h select-window -t :-
+bind-key -r C-l select-window -t :+
# resize panes with vim movement keys
-bind -r H resize-pane -L 5
-bind -r J resize-pane -D 5
-bind -r K resize-pane -U 5
-bind -r L resize-pane -R 5
+bind-key -r H resize-pane -L 5
+bind-key -r J resize-pane -D 5
+bind-key -r K resize-pane -U 5
+bind-key -r L resize-pane -R 5