Which command can display the manual for other commands in Linux?

The command that can display the manual for other commands in Linux is "man." This command provides access to the system's manual pages, which contain detailed documentation for various commands, configuration files, system calls, library functions, and more. When you invoke "man" followed by the name of a command, it presents a structured display of information that typically includes the command's purpose, syntax, options, and usage examples, depending on the command and its documentation.

The "man" command is a fundamental tool for users and administrators to understand how to use commands effectively and to learn about various command options. It is widely used across all Linux distributions and is an essential skill for anyone working in a Linux environment.

The other options, while useful, serve different purposes. The "help" command generally provides information about shell built-in commands in specific shells like bash. The "info" command offers a more extensive and sometimes more user-friendly format, but it is not universally available for all commands, as it is mostly used for GNU utilities. The "guide" is not a standard command in Linux for accessing manuals or documentation.