man

The "man" command line tool is short for "manual," and it is used to display the manual pages for different Unix-like operating systems. These manual pages provide detailed information and documentation about various commands, system calls, library functions, and file formats. The "man" command is typically followed by the name of the command or topic you want to know more about. It displays the manual page for that command/topic, allowing you to read about its purpose, syntax, options, and usage examples. The manual pages are organized into sections, each section containing a specific type of information. The most commonly used sections are 1 (user commands), 2 (system calls), 3 (library functions), and 5 (file formats). Each manual page includes a description, various sections detailing different aspects of the command/topic, and often examples of usage. The "man" command provides a fast and efficient way to access comprehensive documentation, making it an essential tool for users and developers working with Unix-like systems.