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lesson1
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1986-05-02
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SEE BEGINNING INTRODUCTION Screen 1
This is a Read-only file which contains an introduction to SEE. In the course
of using this file, you will be changing it to learn how to use the editor.
When you exit SEE, your changes will not be saved; if you come back to this
file, it will be just like it is now. Don't be afraid of making mistakes in
this file: you can always start over.
First, the basics. In the upper-left hand corner of the screen, there is a
flashing box. This is the cursor; it highlights the character SEE is looking at
right now. The last line on the screen is the status line: on it, you see
"LESSON1", which is the name of the file you are editing. Also, you see three
numbers. The first is the number of the column you are on, the second is the
number of the line you are on, and the last is the number of lines in this file.
There are a few keys we'll talk about now. On your keyboard are four arrow
keys, a key labeled Pg Up and a key labeled Pg Dn. The arrow keys move the
cursor, and the page keys move the entire page. If you have a mouse, it should
be working now: rolling the mouse will also move the cursor. Try moving the
cursor around using the arrow keys and the mouse.
To see the next page of the introduction, hit the key labeled Pg Dn once.
SEE BEGINNING INTRODUCTION Screen 2
About mice: Mice feel a little unusual at first. You will need about 10 minutes
practice with your mouse before you feel comfortable with it. Be careful not
to touch the mouse buttons; we'll get to them later. For now, just roll it
around. In a surprisingly short time, you'll find it natural.
Now we'll try some basic editing. Using either the arrow keys or the mouse,
move the cursor so that it is on the '@' below. Now type a couple of words.
Remember, any changes you make to this file are going to be thrown away when you
exit, so don't worry about making mistakes. Notice that as you type, the @ is
moved to the right to make room. If you hit the key labeled Back Space (the
left pointing arrow above the enter key on some PC's), the character to the left
of the cursor will disappear and all the other characters on the line will move
over to the left. Try hitting this key a few times. This key is used to
correct mistakes as you type.
@
When you're done with this, hit the key labeled Pg Up; this will take you to the
previous page. Then hit Pg Dn to return to this page, and then Pg Dn again to
continue with the introduction.
SEE BEGINNING INTRODUCTION Screen 3
Next, we'll try correcting some mistakes. Below on the screen, there's a line
that says "This sentence has three mispelled wrods inn it." We're going to
correct these three mistakes. First, "mispelled" needs another "s". Move the
cursor so that it is on the "s" in "mispelled". Now type s. Move the cursor so
that it is on the "r" in "wrods". Near the arrow keys on your keyboard is a key
labeled "Del"; hit this key twice. This deletes the "r" and the "o". Now, type
"or". Finally, move the cursor to the second "n" in "inn", and hit the delete
key. The sentence is now repaired.
This sentence has three mispelled wrods inn it.
The key at the upper far left of your keyboard labeled "F1" makes lines appear
and disappear. Hit F1 now. Notice that all the lines below the cursor moved
down one line, and a new blank line appeared ready for you to type on. To
remove this line, hold down the key labeled "CTRL" (near the letter "a" on your
keyboard), and hit F1. CTRL-F1 activates the SEE command which deletes lines.
Notice the "LESSON1" on the status line is now "*LESSON1". This tells you that
the document "LESSON1" has been modified. Hit Pg Dn now.
SEE BEGINNING INTRODUCTION Screen 4
The last thing you need to know to use SEE is how to get out. If you want SEE
to save all your changes and exit, hold down the CTRL key and hit Z. Of course,
this particular file is marked read-only on the disk, so when SEE tries to save
your changes, it will fail. Files must be explicitly set to read-only by the
user: you need not worry about this accidentally happening to one of your files.
If you want to exit SEE without saving any changes, hit the ESCape key, type the
letter "a", then hold down the CTRL key and hit Z. The "a" stands for "abort".
Summary of SEE introductory commands:
move cursor mouse or arrow keys
move up a page Pg Up
move down a page Pg Dn
delete a character BACK SPACE or DELETE
open up a line F1
remove a line CTRL-F1
Exit (save all changes) CTRL-Z
Exit (save no changes) ESC a CTRL-Z
Hit Pg Dn now.
SEE BEGINNING INTRODUCTION Screen 5
SEE has many commands besides these; also the commands you now know have much
more powerful forms. The mouse buttons and the other function keys all have
more advanced functions attached to them. If this is your first time using a
computer to edit, you already know enough to do any editing task. It is
recommended you wait a day or two before learning more, and just practice what
you know now until you're comfortable with it.
If you have a mouse and it seems very touchy, the mouse's tail may be pulling on
the mouse. Make sure your mouse's tail is laying loosely on your desk.
The next lesson is "Lesson2"; when you're ready to learn the material in that,
exit SEE and then type:
a> SEE Lesson2
To exit SEE from Lesson1, you must abort. This is because you have modified
this file, but SEE is unable to save it to disk. To abort SEE, hit the ESC key,
type the letter "a", and then hit CTRL-Z. When you hit the ESC key, SEE will
display the word "Enter: " on the status line, and wait for you to type.
End of Lesson 1