GNU Info

(info)Help-^L

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The Space, DEL, B and ^L commands.
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   This node's mode line tells you that you are now at node `Help-^L',
and the header line tells you that `p' would get you back to `Help-P'.
The node's title is underlined; it says what the node is about (most
nodes have titles).

   This is a big node and it does not all fit on your display screen.
You can tell that there is more that is not visible because you can see
the string `--Top-----' rather than `--All----' near the bottom right
corner of the screen.

   The <SPC>, <BACKSPACE> (or <DEL>)(1) and `b' commands exist to allow
you to "move around" in a node that does not all fit on the screen at
once.  <SPC> moves forward, to show what was below the bottom of the
screen.  <DEL> or <BACKSPACE> moves backward, to show what was above
the top of the screen (there is not anything above the top until you
have typed some spaces).  In Emacs, <SPC> runs the command
`Info-scroll-up', while <BACKSPACE> runs `Info-scroll-down'.

>> Now try typing a <SPC> (afterward, type a <BACKSPACE> to
   return here).

   When you type the <SPC>, the two lines that were at the bottom of
the screen appear at the top, followed by more lines.  <DEL> or
<BACKSPACE> takes the two lines from the top and moves them to the
bottom, _usually_, but if there are not a full screen's worth of lines
above them they may not make it all the way to the bottom.

   If you are reading this in Emacs, note that the header line is
always visible, never scrolling off the display.  That way, you can
always see the `Next', `Prev', and `Up' links, and you can conveniently
go to one of these links from anywhere in the node by clicking the
mouse on one of these links.

   <SPC> and <DEL> not only move forward and backward through the
current node.  When these keys hit the beginning or the end of the
current node, they move to preceding or subsequent nodes.
Specifically, they scroll through all the nodes in an Info file as a
single logical sequence.  In this sequence, a node's subnodes appear
following their parent.  If a node has a menu, <SPC> takes you into the
subnodes listed in the menu, one by one.  Once you reach the end of a
node, and have seen all of its subnodes, <SPC> takes you to the next
node or to the parent's next node.  This is so you could read the
entire manual top to bottom by just typing <SPC>.

   Many keyboards nowadays have two scroll keys labeled `PageUp' and
`PageDown' (or maybe `Prior' and `Next').  If your keyboard has these
keys, you can use them to move forward and backward through the text,
like with <SPC> and <BACKSPACE>.  However, unlike <SPC> and
<BACKSPACE>, <PAGEUP> and <PAGEDOWN> keys will never scroll beyond the
beginning or the end of the current node.

   If your screen is ever garbaged, you can tell Info to display it
again by typing `C-l' (`Control-L', that is--hold down <CTRL> and type
`L' or `l').

>> Type C-l now.

   To move back to the beginning of the node you are on, you can type a
lot of <BACKSPACE> keys.  You can also type simply `b' for beginning.

>> Try that now.  (We have put in enough verbiage to push this past
   the first screenful, but screens are so big nowadays that perhaps it
   isn't enough.  You may need to shrink your Emacs or Info window.)
   Then come back, with <SPS>s.

   If your screen is very tall, all of this node might fit at once.  In
that case, `b' won't do anything.  Sorry; what can we do?

   You have just learned a considerable number of commands.  If you
want to use one but have trouble remembering which, you should type a
`?' (in Emacs it runs the `Info-summary' command) which displays a
brief list of commands.  When you are finished looking at the list,
make it go away by typing a <SPC> repeatedly.

>> Type a <?> now.  Press <SPC> to see consecutive screenfuls of
   the list until finished.  Then type <SPC> several times, until
   it goes away.

   (If you are using the stand-alone Info reader, type `C-x 0' to
return here, that is--press and hold <CTRL>, type an `x', then release
<CTRL> and `x', and press `0'--a zero, not the letter "o".)

   From now on, you will encounter large nodes without warning, and
will be expected to know how to use <SPC> and <BACKSPACE> to move
around in them without being told.  Since not all terminals have the
same size screen, it would be impossible to warn you anyway.

>> Now type n, or click the mouse on the `Next' link, to
   see the description of the m command.

   ---------- Footnotes ----------

   (1) The key which we call "Backspace or DEL" in this manual is
labeled differently on different keyboards.  Look for a key which is a
little ways above the <ENTER> or <RET> key and which you normally use
outside Emacs to erase the character before the cursor, i.e. the
character you typed last.  It might be labeled `Backspace' or `<-' or
`DEL', or sometimes `Delete'.