Using the info command

A newer form of online help is the info command, which replaces the boring, linear output of the man with a navigable, hierarchical set of documentation.

As a test, try reading the info page for the ls command itself:

$ info ls

Once you get into the info system, you really need to remember only a few keystrokes:

If you really want to learn more about info, read its own info page:

$ info info