Someone

on *:text:!setgreet*:#G_Unit: {
  if (!$read(Greets.txt,s,$nick)) {
    write greets.txt $nick $2- | .notice $nick 4Your greet has been set to:5 $2-
  }
  else { 
    write -ds $+ $nick Greets.txt
    write Greets.txt $nick $2- | .notice $nick 4Your greet has been set to:5 $2-
  }
}
on *:join:#G_Unit: {
  if ($read(Greets.txt,s,$nick)) {
    msg $chan 5 $+ $nick $+ :4 $read(greets.txt,s,$nick)
  }
}