The GNU project launched the info pages as an alternative documentation to the man pages. The GNU project once claimed that man pages are outdated and needed replacement and so they came up with the info pages.
You can view the info page of any command by running:
info command_name
For example, to view the info page of the ls command, you can run the info ls command:
elliot@ubuntu-linux:~$ info ls
Next: dir invocation, Up: Directory listing
10.1 ‘ls': List directory contents
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The ‘ls' program lists information about files (of any type, including directories). Options and file arguments can be intermixed arbitrarily, as usual.
For non-option command-line arguments that are directories, by default ‘ls' lists the contents of directories, not recursively, and omitting files with names beginning with ‘.'. For other non-option arguments, by default ‘ls' lists just the file name. If no non...