cmd:info quick reference 

RET    Follow a node reference near point, like mouse-2.
n      Move to the "next" node of this node.
p      Move to the "previous" node of this node.
u      Move "up" from this node.
m      Pick menu item specified by name (or abbreviation).
        Picking a menu item causes another node to be selected.
d      Go to the Info directory node.
f      Follow a cross reference.  Reads name of reference.
l      Move to the last node you were at.
i      Look up a topic in this file's Index and move to that node.
,      (comma) Move to the next match from a previous `i' command.
t      Go to the Top node of this file.
>      Go to the final node in this file.
[      Go backward one node, considering all nodes as forming one sequence.
]      Go forward one node, considering all nodes as forming one sequence.

Moving within a node:

SPC    Normally, scroll forward a full screen.
Once you scroll far enough in a node that its menu appears on the screen
but after point, the next scroll moves into its first subnode.
When after all menu items (or if their is no menu), move up to
the parent node.
DEL    Normally, scroll backward.  If the beginning of the buffer is
already visible, try to go to the previous menu entry, or up if there is none.
b      Go to beginning of node.

Advanced commands:

q      Quit Info: reselect previously selected buffer.
e      Edit contents of selected node.
1      Pick first item in node's menu.
2, 3, 4, 5   Pick second ... fifth item in node's menu.
g      Move to node specified by name.
        You may include a filename as well, as (FILENAME)NODENAME.
s      Search through this Info file for specified regexp,
        and select the node in which the next occurrence is found.
TAB    Move cursor to next cross-reference or menu item.
M-TAB  Move cursor to previous cross-reference or menu item.

Search 

   Info has powerful searching facilities that let you find things
quickly.  You can search either the manual indices or its text.
   Since most subjects related to what the manual describes should be indexed,
you should try the index search first.  The `i' command looks up a subject in
the indices.  The `i' command finds all index entries which include the string
you typed _as a substring_. Type `,' one or more times to go through
additional index entries which match your subject.
   The `s' command allows you to search a whole file for a string.  To search
for the same string again, just `s' followed by <RET> will do.  The file's
nodes are scanned in the order they are in in the file, which has no necessary
relationship to the order that they may be in the tree structure of menus and
`next' pointers.