What is the function of the 'wget' command in Linux?

The 'wget' command in Linux is a powerful utility designed specifically for downloading files from the internet. It supports various protocols such as HTTP, HTTPS, and FTP, allowing users to retrieve content from remote servers. One of its key features is the ability to download files non-interactively, which means it can be run in the background and can continue downloading even if the user is not logged in, making it particularly useful for retrieving large files or when working on remote systems.

Additionally, 'wget' has features like recursive downloads, which allows it to download entire websites by mirroring all linked resources up to a specified level. It is widely appreciated for its reliability and flexibility, making it a go-to tool for network administrators and users who need to automate the process of fetching files.

The other choices, while they refer to important functions in Linux, do not pertain to the primary function of 'wget'. The command's specific purpose of downloading files distinguishes it clearly from the other options mentioned.