Delete All Linux Data: Secure Commands

To delete all the data, you can use the following command:

1. rm -rf /: This is the most thorough command for deleting data, as it will remove all files and folders in the root directory, including system files. Please use this command carefully, as it can render the system inoperable.
2. This command is used to completely erase data on a hard drive. Replace “/dev/sdX” in the command with the hard drive device you want to erase, such as “/dev/sda”. This command will perform 5 rounds of random data writing and deletion, followed by a final zero-fill write to ensure data cannot be recovered.
3. The command “dd if=/dev/zero of=/dev/sdX bs=4M” can also be used to wipe data on a hard drive. Replace “/dev/sdX” with the specific hard drive device you want to erase, such as “/dev/sda”. This command will write zeros to the hard drive to overwrite the original data.

Please make sure you understand what you are doing before executing the above command and proceed with caution to avoid irreversibly losing important data.