autossh combined with tmux for a mosh like behaior

smux.sh

function smux {

  AUTOSSH_POLL=10
  AUTOSSH_PORT=$(awk 'BEGIN { srand(); do r = rand()*32000; while ( r < 20000 ); printf("%d\n",r)  }' < /dev/null)
  #AUTOSSH_GATETIME=30
  #AUTOSSH_LOGFILE=autossh.$HOST.log
  #AUTOSSH_DEBUG=yes
  #AUTOSSH_PATH=/usr/local/bin/ssh
  export AUTOSSH_POLL AUTOSSH_LOGFILE AUTOSSH_DEBUG AUTOSSH_PATH AUTOSSH_GATETIME AUTOSSH_PORT

  case "$2" in
    "") autossh $@ -t "if tmux -qu has; then tmux -qu attach; else EDITOR=vim tmux -qu new; fi";;
	   *) autossh $@ -t "if tmux -qu has -t $2; then tmux -qu attach -t $2; else EDITOR=vim tmux -qu new -s $2; fi";;
  esac
}