My tmux config.

.tmux.conf

# Default shell should be zsh
set-option -g default-shell /bin/zsh
set -g default-terminal "xterm"

#C-b is not acceptable -- Vim uses it
set-option -g prefix C-a
bind-key C-a last-window

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

# Allows for faster key repetition
set -s escape-time 0

# Set status bar
#set -g status-bg black
#set -g status-fg white
#set -g status-left ""
#set -g status-right "#[fg=green]#H"

# Rather than constraining window size to the maximum size of any client
# connected to the *session*, constrain window size to the maximum size of any
# client connected to *that window*. Much more reasonable.
setw -g aggressive-resize on

# Allows us to use C-a a <command> to send commands to a TMUX session inside
# another TMUX session
bind-key a send-prefix

# Activity monitoring
#setw -g monitor-activity on
#set -g visual-activity on

# Example of using a shell command in the status line
#set -g status-right "#[fg=yellow]#(uptime | cut -d ',' -f 2-)"

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

# move x clipboard into tmux paste buffer
#bind C-p run "xclip -o clip | tmux load-buffer - ; tmux paste-buffer"
# move tmux copy buffer into x clipboard
#bind C-y run "tmux show-buffer | xclip -sel clip"

# Most recent attempt
# move x clipboard into tmux paste buffer
#bind C-p run "tmux set-buffer \"$(xclip -o)\"; tmux paste-buffer"
# move tmux copy buffer into x clipboard
#bind C-g run "tmux save-buffer - | xclip -selection clipboard"