I am trying to delete a file in linux, (Ubuntu 20.04). As per my understanding, when we delete a file, the inode and directory entry structures are modified first and the file is actually deleted at a later time. This is one of the reasons why the file can be recovered by different tools later.
I want to delete a file and know that it has been physically deleted from the disk. There should be no way that I can retrieve it at any point of time.