GNU hypertext reader. Display online documentation previously built from Texinfo input. Info files are arranged in a hierarchy and can contain menus for subtopics. When entered without options, the command displays the top-level info file (usually /usr/local/info/dir or /usr/local/share/dir). When topics are specified, find a subtopic by choosing the first topic from the menu in the top-level info file, the next topic from the new menu specified by the first topic, and so on. The initial display can also be controlled by the -f and -n options. If a specified topic has no info file but does have a manpage, info displays the manpage; if there is neither, the top-level info file is displayed.
Search directories, a colon-separated list, for info files. If this option is not specified, use the INFOPATH environment -variable or the default directory (usually /usr/local/info or /usr/share/info).
Store each keystroke in file, which can be used in a future session with the --restore option to return to this place in info.
Display specified info file.
Display brief help message and exit.
Display node pointed to by index entry string.
Search all info topics for string and display the results.
Display specified node in the info file.
Copy output to file instead of displaying it on the screen. ...