intro - Introduction to miscellaneous reference pages
This section contains miscellaneous documentation on various topics. The section also contains information about text-processing macro packages used by nroff and other *roff commands.
Some reference pages in this section may contain suffixes to allow their files to exist with those of other reference pages having the same base name and section number. When used, suffixes are made up of one to four letters. See the man(1) reference page for more information on suffixes.