info is a software utility which forms a hypertextual, multipage documentation and help viewer working on a command line interface, useful when there is no GUI available.
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.
The C implementation of info was designed as the main documentation system of GNU based Operating Systems and was then ported to other Unix-like operating systems. However, info files had already been in use on ITS emacs.
List of Texinfo readers
info
pinfo
tkman
tkinfo
khelpcenter (click "Browse Info Pages")
emacs
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