alias logout {
  if ($1) {
    if ($read(online.txt,s,$1)) {
      write -ds $+ $1 Online.txt
      echo -a You have successfully logged out $1
      msg #AltInfo 8(12 [04 $+ $1 $+ 12]06 has logged out. 8)
    }
    else { echo -a $1 is not logged in. }
  }
  else { echo -a Enter a user: /logout username. }
}