Linux tip: Learn to use the shred command

The video tutorial explains the shred command, which securely removes files from a disk by overwriting them multiple times, making recovery impossible. It contrasts this with the RM command, which only deletes file references, leaving data recoverable. The tutorial provides a detailed guide on using the shred command, including parameters for secure file deletion, and concludes with recommendations on its usage.

What is the primary difference between the shred command and the RM command?

• Shred command is used for compressing files.

• Shred command overwrites files multiple times, unlike RM command.

• Shred command deletes files faster than RM command.

• RM command is more secure than shred command.

Why might someone choose to use the shred command instead of the RM command?

• To recover deleted files more easily.

• To rename files more efficiently.

• To ensure files are deleted permanently and cannot be recovered.

• To save disk space by compressing files.

Which argument in the shred command is used to overwrite the file with zeros?

• dash Z

• dash M

• dash U

• dash N

How many default passes does the shred command make over a file?

• 1

• 2

• 5

• 3

What is the recommended number of passes for shredding a file?

• Unlimited passes ensure maximum security.

• 10 passes are necessary for security.

• The default number of passes is usually adequate.

• 1 pass is sufficient.