man7
man7 is the designation used in Unix-like systems for the seventh section of the manual pages (man pages). Section 7 contains documentation about topics that do not fit into other manual sections, serving as a repository for miscellaneous information, conventions, file formats, standards, and general overviews of system interfaces and data representations.
The content typically covers topics such as file formats and data representations, protocol specifications, encoding schemes,
Access and navigation: on most Linux distributions, the pages reside in directories such as /usr/share/man/man7. A
Relation to other sections: section 7 complements the other man page sections by documenting general knowledge,