compare 2 lists?

BULMADB

hello is there anyway to compare 2 lists and keep only lines not exist on both list
for example i have i have list1 contains urls, i know when i do this thing again it will parse again and save those urls that already in list 1.
example:
list1 contains:
1
2

list 2 contains :
1

i want to know if i can keep only 2 parsed data.

Br4uN

@BULMADB Yes it is possible compare two list through while loop and IF statement Example

#UTILITY_List1 UTILITY File "list1.txt" ReadLines -> VAR "List1" 
#UTILITY_List2 UTILITY File "list2.txt" ReadLines -> VAR "List2" 
#UTILITY_Lenth2 UTILITY List "List2" Length -> VAR "Lenth2" 
SET VAR "INDEX" "0"
WHILE "<INDEX>" LessThan "<Lenth2>"
IF "<List2[<INDEX>]>" DoesNotContain "<List1>"
UTILITY List "List1" Add "<List2[<INDEX>]>" "-1" -> VAR "FinalList" 
ELSE
ENDIF
#FUNCTION_Increment FUNCTION Compute "<INDEX>+1" -> VAR "INDEX" 
ENDWHILE
#FUNCTION_Dummy FUNCTION Constant -> VAR "Dummy"

In this case script will check if data in list2 do not exist on list1 it'll add it to list1, you can adjust it according your needs

BULMADB

ty so much. i want only to keep the non found links from list 2 on list one, i know how i will do it , thank you so much , i really appreciate it