My TMUX configuration file.

.tmux.conf

# Act like GNU screen
unbind C-b
set -g prefix C-a
bind-key C-a last-window
setw -g aggressive-resize on

# Reload tmux conf
bind-key r source-file ~/.tmux.conf

# Look good
set -g default-terminal "screen-256color"

# Set status bar
set -g status-bg white
set -g status-fg black

# Highlight active window
set-window-option -g window-status-current-bg red

# Act like vi
setw -g mode-keys vi

# Act like vi when navigating panes
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# Start numbering from index 1
set -g base-index 1