ofc ... i needed this because i did't know how to delete the file .. and if the query is empty .. it doesn't create a file .. so $null is matched .. but if a privious query .. wasn't empty.. the files is create .. and I couldn't delete it .. so if new query is opened .. the file will be sized '0' ...

with the remove command all that is needless

10x for the help ... and if there is any other way to do that .. i'm very curious about it
