Code:
on *:TEXT:!start:#jb_uk: {
  if ($nick isop #) {
    describe # AutoCom: ON
    .timerNow 70 12 Linksall #
  }
  else np # $nick
}

alias Linksall { 
  var %chan $1
  var %lines $lines(linksall.txt)
  if (!%counter) || (%counter > %lines) set %counter 1
  var %msg $read(linksall.txt,%counter)
  msg %chan %msg
  inc %counter
}

on *:TEXT:!stop:#jb_uk: {
  if ($nick isop #) {
    describe # AutoCom: OFF
    .timerNow off
  }
  else np # $nick
}

alias np msg $1 $2 -> You do not have permission to perform this action.
Untested