find_difference.au3

; get difference of two files in another one file

#include <Array.au3>
#include <File.au3>
#include <MsgBoxConstants.au3>

Local $ENRetArray, $RURetArray
_FileReadToArray("en", $ENRetArray)
_FileReadToArray("ru", $RURetArray)
Local $ResFileOpen = FileOpen("res", $FO_APPEND)

For $i = 1 To UBound($ENRetArray) - 1
   if _ArraySearch($RURetArray, $ENRetArray[$i], 0, 0, 0, 0, 1, 2) = -1 Then
      ConsoleWrite($ENRetArray[$i] & @LF)
      FileWrite($ResFileOpen, $ENRetArray[$i] & @LF)
   EndIf
Next

FileClose($ResFileOpen)