collection

Now move the cursor to the second line you want to collect, and type this: >

	:.write >>collection

The ">>" tells Vim the "collection" file is not to be written as a new file,
but the line must be appended at the end.   You can repeat this as many times
as you like.

==============================================================================
*10.7*	Formatting text

When you are typing plain text, it's nice if the length of each line is
automatically trimmed to fit in the window.  To make this happen while
inserting text, set the 'textwidth' option: >

	:set textwidth=78

You might remember that in the example vimrc file this command was used for
every text file.  Thus if you are using that vimrc file, you were already
using it.  To check the current value of 'textwidth': >

	:set textwidth

Now lines will be broken to take only up to 78 characters.  However, when you
insert text halfway through a line, or when you delete a few words, the lines
will get too long or too short.  Vim doesn't automatically reformat the text.
To tell Vim to format the current paragraph: >

	gqap

This starts with the "gq" command, which is an operator.  Following is "ap",
the text object that stands for "a paragraph".  A paragraph is separated from
the next paragraph by an empty line.

	Note:
	A blank line, which contains white space, does NOT separate
	paragraphs.  This is hard to notice!

Instead of "ap" you could use any motion or text object.  If your paragraphs
are properly separated, you can use this command to format the whole file: >

	gggqG

"gg" takes you to the first line, "gq" is the format operator and "G" the
motion that jumps to the last line.

In case your paragraphs aren't clearly defined, you can format just the lines
you manually select.  Move the cursor to the first line you want to format.
Start with the command "gqj".  This formats the current line and the one below
it.  If the first line was short, words from the next line will be appended.
If it was too long, words will be moved to the next line.  The cursor moves to
the second line.  Now you can use "." to repeat the command.  Keep doing this
until you are at the end of the text you want to format.

==============================================================================
*10.8*	Changing case

You have text with section headers in lowercase.  You want to make the word
"section" all uppercase.  Do this with the "gU" operator.  Start with the
cursor in the first column: >

			     gUw
<	section header	    ---->      SECTION header

The "gu" operator does exactly the opposite: >

			     guw
<	SECTION header	    ---->      section header

You can also use "g~" to swap case.  All these are operators, thus they work
with any motion command, with text objects and in Visual mode.
   To make an operator work on lines you double it.  The delete operator is
"d", thus to delete a line you use "dd".  Similarly, "gugu" makes a whole line
lowercase.  This can be shortened to "guu".  "gUgU" is shortened to "gUU" and
"g~g~" to "g~~".  Example: >

				g~~
<	Some GIRLS have Fun    ---->   sOME girls HAVE fUN ~

==============================================================================
*10.9*	Using an external program

Vim has a very powerful set of commands, it can do anything.  But there may
still be something that an external command can do better or faster.
   The command "!{motion}{program}" takes a block of text and filters it
through an external program.  In other words, it runs the system command
represented by {program}, giving it the block of text represented by {motion}
as input.  The output of this command then replaces the selected block.
   Because this summarizes badly if you are unfamiliar with Unix filters, take
a look at an example.  The sort command sorts a file.  If you execute the
following command, the unsorted file input.txt will be sorted and written to
output.txt.  This works on both Unix and Windows. >

	sort <input.txt >output.txt

Now do the