Thanks maroon
This is code

Code
ON !*:JOIN:#: {
  var %domain = $address($nick,2)
  var %ident = $remove($gettok($gettok(%fullhost ,2,33))  
  if ($read(do.txt, w, *, %domain ) isin %domain ) {
    ban -u77200 # $address($nick,2)
  }
  else {
    dec %domain 
  }
}


The code read one first line only in filetext(do.txt)
, not search in all lines in the filetext

In need read or search all lines numbers in the filetext,
If there is a match of the number in one of the lines, execute the command