.tmux.conf

setw -g mode-keys vi
set -g status-keys vi
bind-key -t vi-edit Up   history-up
bind-key -t vi-edit Down history-down
bind-key | split-window -h
bind-key - split-window -v
is_vim='echo "#{pane_current_command} | grep -iqE "(^|\/)g?(view|n?vim?)(diff)?$"'
bind -n C-h if-shell "$is_vim" "send-keys C-h" "select-pane -L"
bind -n C-j if-shell "$is_vim" "send-keys C-j" "select-pane -D"
bind -n C-k if-shell "$is_vim" "send-keys C-k" "select-pane -U"
bind -n C-l if-shell "$is_vim" "send-keys C-l" "select-pane -R"
bind -n C-\ if-shell "$is_vim" "send-keys C-\\" "select-pane -l"