Manual section 7

ditroff - classical device independent roff -
groff - a short reference for the GNU roff language -
groff_char - groff character names
groff_diff - differences between GNU troff and classical troff -
groff_man - groff `man' macros to support generation of man pages
groff_mdoc - reference for groff's mdoc implementation
groff_me - troff macros for formatting papers
groff_mm - groff mm macros
groff_mmse - svenska mm makro för groff
groff_mom - groff `mom' macros
groff_ms - groff ms macros
groff_trace - groff macro package trace.tmac
groff_www - groff macros for authoring web pages
Modes of DES - the variants of DES and other crypto algorithms of OpenSSL
roff - concepts and history of roff typesetting -
SAMBA - A Windows SMB/CIFS fileserver for UNIX