How to use info command.

What is info command?

In Linux, the "info" command typically refers to the Info documentation system. Info is a specialized format for documentation that is commonly used for GNU software and other projects. It provides a hierarchical and interactive documentation viewer that allows you to navigate through different sections and topics of documentation.

Options for info command:

  • -a, –all: It use all matching manuals.
  • -k, –apropos=STRING: It look up STRING in all indices of all manuals.
  • -d, –directory=DIR: It add DIR to INFOPATH.
  • -f, –file=MANUAL: It specify Info manual to visit.
  • -h, –help: It display this help and exit.
  • -n, –node=NODENAME: It specify nodes in first visited Info file.
  • -o, –output=FILE: It output selected nodes to FILE.
  • -O, –show-options, –usage: It go to command-line options node.
  • -v, –variable VAR=VALUE: It assign VALUE to Info variable VAR.
  • –version: It display version information and exit.
  • -w, –where, –location: It print physical location of Info file.

Syntax:

info [OPTION]... [MENU-ITEM...]

Examples:

-a : It use all matching manuals and display them for a particular command.

 info -a cvs

-k : It look up STRING in all indices of all manuals and then display the same.

 info -k cvs

-d : It adds DIR to INFOPATH and also display the same.

 info -d cvs

-O : It go to command-line options node for a particular command and display the same.

 info -O cvs

-w Command : It print physical location of Info file.

 info -w cvs

Note:

  • To check for the manual page of info command, use the following command:
    man info

  • To check the help page of info command, use the following command:

    info --help