on *:text:!links*:#: {
  if ($nick isop #) {
    if ($2 == on) {
      if (%links) {
        msg # Link protection is already enabled
        return
      }
      else {
        msg # Link protection enabled
        set %links On
        return
      }
    }
    if ($2 == off) {
      if (%links) {
        msg # Link protection disabled
        unset %links on
        return
      }
      else {
        msg # Link protection is already disabled
        return
      }
    }
  }
}