info (Unix)

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info is a software utility which forms a hypertextual, multipage documentation and help viewer working on a command line interface, so no GUI is needed.

info processes info files, which are Texinfo formatted files, and presents the documentation as a tree, with simple commands to traverse the tree and to follow cross references. For instance

  • n goes to the next page.
  • p goes to the previous page.
  • u goes to the upper page.
  • l goes to the last(visited) node
  • To follow a cross reference, the cursor can be moved over a link (a word preceded by a *) and enter pressed.

info was initially written for use with GNU/Linux and then ported to other Unix-like operating systems.

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