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GNU Info File
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1994-02-24
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1,016 lines
This is Info file info-stnd.info, produced by Makeinfo-1.55 from the
input file info-stnd.texi.
This file documents GNU Info, a program for viewing the on-line
formatted versions of Texinfo files. This documentation is different
from the documentation for the Info reader that is part of GNU Emacs.
If you do not know how to use Info, but have a working Info reader, you
should read that documentation first.
Copyright (C) 1992, 1993 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of this
manual provided the copyright notice and this permission notice are
preserved on all copies.
Permission is granted to copy and distribute modified versions of this
manual under the conditions for verbatim copying, provided also that the
sections entitled "Copying" and "GNU General Public License" are
included exactly as in the original, and provided that the entire
resulting derived work is distributed under the terms of a permission
notice identical to this one.
Permission is granted to copy and distribute translations of this manual
into another language, under the above conditions for modified versions,
except that this permission notice may be stated in a translation
approved by the Free Software Foundation.
File: info-stnd.info, Node: Top, Next: What is Info, Prev: (dir), Up: (dir)
The GNU Info Program
********************
This file documents GNU Info, a program for viewing the on-line
formatted versions of Texinfo files, version 2.9. This documentation
is different from the documentation for the Info reader that is part of
GNU Emacs.
* Menu:
* What is Info::
* Options:: Options you can pass on the command line.
* Cursor Commands:: Commands which move the cursor within a node.
* Scrolling Commands:: Commands for moving the node around
in a window.
* Node Commands:: Commands for selecting a new node.
* Searching Commands:: Commands for searching an Info file.
* Xref Commands:: Commands for selecting cross references.
* Window Commands:: Commands which manipulate multiple windows.
* Printing Nodes:: How to print out the contents of a node.
* Miscellaneous Commands:: A few commands that defy categories.
* Variables:: How to change the default behavior of Info.
* GNU Info Global Index:: Global index containing keystrokes,
command names, variable names,
and general concepts.
File: info-stnd.info, Node: What is Info, Next: Options, Prev: Top, Up: Top
What is Info?
*************
"Info" is a program which is used to view Info files on an ASCII
terminal. "Info files" are the result of processing Texinfo files with
the program `makeinfo' or with one of the Emacs commands, such as `M-x
texinfo-format-buffer'. Texinfo itself is a documentation system that
uses a single source file to produce both on-line information and
printed output. You can typeset and print the files that you read in
Info.
File: info-stnd.info, Node: Options, Next: Cursor Commands, Prev: What is Info, Up: Top
Command Line Options
********************
GNU Info accepts several options to control the initial node being
viewed, and to specify which directories to search for Info files. Here
is a template showing an invocation of GNU Info from the shell:
info [--OPTION-NAME OPTION-VALUE] MENU-ITEM...
The following OPTION-NAMES are available when invoking Info from the
shell:
`--directory DIRECTORY-PATH'
`-d DIRECTORY-PATH'
Add DIRECTORY-PATH to the list of directory paths searched when
Info needs to find a file. You may issue `--directory' multiple
times; once for each directory which contains Info files.
Alternatively, you may specify a value for the environment variable
`INFOPATH'; if `--directory' is not given, the value of `INFOPATH'
is used. The value of `INFOPATH' is a colon separated list of
directory names. If you do not supply `INFOPATH' or
`--directory-path', Info uses a default path.
`--file FILENAME'
`-f FILENAME'
Specify a particular Info file to visit. By default, Info visits
the file `dir'; if you use this option, Info will start with
`(FILENAME)Top' as the first file and node.
`--node NODENAME'
`-n NODENAME'
Specify a particular node to visit in the initial file that Info
loads. This is especially useful in conjunction with `--file'(1)
(*note Options-Footnotes::). You may specify `--node' multiple
times; for an interactive Info, each NODENAME is visited in its
own window, for a non-interactive Info (such as when `--output' is
given) each NODENAME is processed sequentially.
`--output FILENAME'
`-o FILENAME'
Specify FILENAME as the name of a file to which to direct output.
Each node that Info visits will be output to FILENAME instead of
interactively viewed. A value of `-' for FILENAME specifies the
standard output.
`--subnodes'
This option only has meaning when given in conjunction with
`--output'. It means to recursively output the nodes appearing in
the menus of each node being output. Menu items which resolve to
external Info files are not output, and neither are menu items
which are members of an index. Each node is only output once.
`--help'
Produces a relatively brief description of the available Info
options.
`--version'
Prints the version information of Info and exits.
`MENU-ITEM'
Info treats its remaining arguments as the names of menu items.
The first argument is a menu item in the initial node visited,
while the second argument is a menu item in the first argument's
node. You can easily move to the node of your choice by
specifying the menu names which describe the path to that node.
For example,
info emacs buffers
first selects the menu item `Emacs' in the node `(dir)Top', and
then selects the menu item `Buffers' in the node `(emacs)Top'.
File: info-stnd.info, Node: Options-Footnotes, Up: Options
(1) Of course, you can specify both the file and node in a `--node'
command; but don't forget to escape the open and close parentheses from
the shell as in: `info --node '(emacs)Buffers''
File: info-stnd.info, Node: Cursor Commands, Next: Scrolling Commands, Prev: Options, Up: Top
Moving the Cursor
*****************
Many people find that reading screens of text page by page is made
easier when one is able to indicate particular pieces of text with some
kind of pointing device. Since this is the case, GNU Info (both the
Emacs and standalone versions) have several commands which allow you to
move the cursor about the screen. The notation used in this manual to
describe keystrokes is identical to the notation used within the Emacs
manual, and the GNU Readline manual. *Note Character Conventions:
(emacs)Characters, if you are unfamiliar with the notation.
The following table lists the basic cursor movement commands in Info.
Each entry consists of the key sequence you should type to execute the
cursor movement, the `M-x'(1) (*note Cursor Commands-Footnotes::)
command name (displayed in parentheses), and a short description of
what the command does. All of the cursor motion commands can take an
"numeric" argument (*note `universal-argument': Miscellaneous
Commands.), to find out how to supply them. With a numeric argument,
the motion commands are simply executed that many times; for example, a
numeric argument of 4 given to `next-line' causes the cursor to move
down 4 lines. With a negative numeric argument, the motion is
reversed; an argument of -4 given to the `next-line' command would
cause the cursor to move *up* 4 lines.
`C-n' (`next-line')
Move the cursor down to the next line.
`C-p' (`prev-line')
Move the cursor up to the previous line.
`C-a' (`beginning-of-line')
Move the cursor to the start of the current line.
`C-e' (`end-of-line')
Move the cursor to the end of the current line.
`C-f' (`forward-char')
Move the cursor forward a character.
`C