Thank you very much for your kind reply for the beginners.
Filtering has been applied.
However, that only the filtering case shp is deleted.
↓ that’s result of applying
A_A. shp 100byte less so delete
But i want delete all A_A file(dbf, prj,qpj,shx) because A_A.shp less than 100byte
B_B. shp 100byte more so all save it
Is there anything else I need to apply filtering?
It may be a basic question, but I’m sorry to keep bothering you. 