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