rkhunter:tldr:1ab14

The command "sudo rkhunter --update" is used to update the Rootkit Hunter (rkhunter) program.

Here's a breakdown of each part of the command:

• "sudo": It is used to execute the subsequent command with administrative (root) privileges. This is necessary because updating software often requires administrative access.

• "rkhunter": This is the actual command that refers to the Rootkit Hunter program. Rootkit Hunter is a security tool that scans a system for known and unknown rootkits, backdoors, and other malicious software.

• "--update": It is an argument or option that specifies what action to perform with the rkhunter command. In this case, "--update" indicates that the program should update its database of known rootkits and other malicious signatures.

When you run the "sudo rkhunter --update" command, the Rootkit Hunter program will check for updates to its database and download the latest version. This ensures that the program has the most up-to-date information to detect and protect against the latest threats.