What functionality does the 'man' command provide in Linux?

The 'man' command in Linux is a built-in utility that provides access to the system's manual pages. These manual pages contain detailed documentation about various commands, utilities, and library functions available on the system. When a user inputs the 'man' command followed by the name of a command or system function, it displays a formatted page with instructions and information on how to use that command or function, including its options and examples.

This command is essential for users looking to understand the functionality and intended use of various commands within the Linux operating system, making it a vital tool for effective command-line utilization. It serves as a comprehensive reference that assists both new and experienced users in navigating the Linux environment.