When you shred a piece of data, usually one or more files or folders, you erase whatever it is you selected, and only those items.
Mgbe ị na- ehichapụ data, na-abụkarị otu ma ọ bụ karịa faịlụ ma ọ bụ nchekwa, ị na-ehichapụ ihe ọ bụla ị họọrọ, na naanị ihe ndị ahụ.