fortunately it doesn't do any anything on my file
so even putting into a file it returns an empty file
oooppsssss ... my mistake
I only put the file1 once
why we need to put it twice? is it for comparison?
Thanks for your help
---------- Post updated at 08:31 AM ---------- Previous update was at 08:16 AM ----------
i tested it on my documents
somehow, it does not delete all the single lines so I do steel have unique data
on the other hand it deletes one row from the non-unique ones as well so if i have two james on file one, in output i have 1 james only
any suggestion?