Start TMUX when logging in (fish shell)

gistfile1.sh

#
# From: http://unix.stackexchange.com/questions/121401/how-can-i-start-tmux-automatically-in-fish-shell-while-connecting-to-remote-serv
#
if status --is-login
    set PPID (echo (ps --pid %self -o ppid --no-headers) | xargs)
    if ps --pid $PPID | grep ssh
        tmux has-session -t remote; and tmux attach-session -t remote; or tmux new-session -s remote; and kill %self
        echo "tmux failed to start; using plain fish shell"
    end
end