intro man page
intro — introduction to overview, conventions, and miscellany section
Section 7 of the manual provides overviews on various topics, and describes conventions and protocols, character set standards, the standard filesystem layout, and miscellaneous other things.
Authors and copyright conditions
Look at the header of the manual page source for the author(s) and copyright conditions. Note that these can be different from page to page!
This page is part of release 4.09 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.