tmux.conf

unbind-key C-b
set -g prefix C-a 
bind-key C-a send-prefix
unbind %
bind | split-window -h
bind - split-window -v

# act like vim
setw -g mode-keys vi
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R
bind-key -r C-h select-window -t :-
bind-key -r C-l select-window -t :+
unbind [
bind ` copy-mode
unbind p
bind p paste-buffer
bind -t vi-copy v begin-selection
bind -t vi-copy y copy-selection

# after copying to a tmux buffer, hit y again to copy to clipboard
bind y run "tmux save-buffer - | reattach-to-user-namespace pbcopy"

# a mouse
set -g mode-mouse on
setw -g mouse-select-window on
setw -g mouse-select-pane on

set-option -g default-terminal screen-256color