.. -*- coding: utf-8; -*-=========== Man pages===========.. contents:: :local:Man sections============ 1 Executable programs or shell commands. 2 System calls (functions provided by the kernel). 3 Library calls (functions within program libraries). 4 Special files (usually found in /dev). 5 File formats and conventions eg /etc/passwd. 6 Games. 7 Miscellaneous (including macro packages and conventions). 8 System administration commands (usually only for root).Invoking man============Search for prog, func, conf file:: $ man [<section>] <item>Search by specific keywords:: $ man -k <keywords>Viewing inside Emacs:: M-x man RET [<section>] <item> M-x man RET -k SPACE <keywords>Sections order==============:: NAME - brief prog description SYNOPSIS (USAGE) - command line options in BNF DESCRIPTION - long prog description OPTIONS - long option descriptions ... misc sections ... EXAMPLES EXIT STATUS ENVIRONMENT AVAILABILITY - whare search source, where home page FILES - list of files that has effect on program working AUTHORS COPYRIGHT SEE ALSO BUGS - know issue, how report bug HISTORYMan page showing================TODOBolt by print char, back one char and print same char.Underscore by printing undescore, back one char and print char.Development tools=================To preview local man page:: $ groff -man -Tascii foo.1 # 7-bit char $ groff -man -Tlatin1 foo.1 # 8-bit char $ groff -man -Tlatin1 foo.1 | less $ groff -a -mandoc -Tlatin1 e.1 $ groff -man -Tutf8 foo.1 $ man ./foo.1 # if slashes in path - use file $ mkdir man1 $ cp foo.1 man1 $ man -M . 1 foo # without slashes search in MANPATH item # and add /man1 to each itemOutput format=============Plain text:: $ man foo | col -b >.foo.txtPostScript:: $ groff -Tps foo >foo.psDVI:: $ groff -Tdvi foo >foo.dvi