How do you display manual pages for a command in Linux?

To display manual pages for a command in Linux, the most commonly used and standard approach is by using the man command followed by the specific command you want to view the manual for. The man command accesses the manual pages (or "man pages"), which provide detailed information about commands, including their usage, options, and examples. This is a fundamental tool for users who wish to deepen their understanding of command-line utilities and their functionalities.

The other options, while they represent different ways to obtain information about commands and the Linux system, do not provide the same comprehensive and organized documentation found in the man pages. For instance, the help command is primarily used for shell built-in commands, offering brief descriptions, whereas the info command provides information on GNU utilities in a different format that can sometimes be less detailed than man pages. The doc command is not a standard command for displaying documentation in most Linux distributions. Thus, the man command is the preferred and proper way to access detailed command documentation.