What is the method to completely remove files in CentOS?

To completely delete a file on CentOS, you can use one of the following methods:

1. To delete a file without moving it to the trash, use the “rm” command in the terminal.
2. delete the file path
3. This will recursively delete the directory and all of its files.
4. Employing the shred command: the shred command can completely erase files, making them unrecoverable.
5. Permanently delete the file at the specified location.
6. This will overwrite the file content with random data and then delete the file after completion.
7. When using the dd command, it can also be used to completely delete files, but a larger block size needs to be specified for efficiency.
8. Generate a file of random data with a size of 10 MB and then delete the file.
9. This will overwrite and delete the first 10MB of the file with random data.

Please be aware that once files are permanently deleted, their content cannot be recovered. Therefore, please use these commands with caution and make sure you truly intend to delete the files.