Here is a simple guide to using UNIX on the Silicon Graphics computers:

1)  Logging in:  supply your UNIX account name and password (hof+last 4 digits
of your social security#) at the prompt.

2)  After a few seconds the screen will change and you will see a small box in
the upper left corner.  Click the mouse on SYSTEMS

3)  Click on Local Host

4)  Click on the "Red Window Frame"

5)  After a few seconds you will get a welcome message.  If this is the first
time you are logging in, you should change your password using the "yppasswd"
command.  Supply the existing password and then type the new one.  You will be
asked to verify the new one.  Note that your keystrokes will not be echoed!
    
6)  You are now in UNIX.  Various commands include:

ls                            lists all files in current dir
cat filename.ext                   displays contents of specified file 
rm filename.ext                    deletes specified file
lp -dhp4_adams_204 < filename.ext  Outputs file to printer
     
7)  To edit a file

     nedit filename.c              (Assuming this is a C Program)
     Click on Red Window Frame
     If this is a new file you will see a dialog window:
          Click on "create"
     Place cursor in edit window
     Enter program text
     There are various ways to exit, but the simplest is:
          Click on FILE
          Click on EXIT
          Click on SAVE

8)  To compile and link a C program

     mycc filename       (Note: DO NOT include the .c extension!)

9)  If there are syntax errors, go back to Step 7 and re-edit the file to
correct the errors.  Then repeat Step 8.  You may need to repeat Steps 7 and 8
several times before successfully compiling and linking!!

10) To run your program just type the filename without any extension.

11)  To create a log file containing the "run" of your program (assuming the
program has successfully compiled).  Resulting file will contain a listing of
your source program as well as its runtime behavior:

     a.  startlog                  /* Initiate a scripted session  */
     b.  cat filename.c            /* display program on screen    */
     c.  filename                  /* Run program                   */
     d.  interact with program          /* Show program's behavior      */
     e.  exit                      /* End this session              */
     f.  y                              /* Answer yes: print script file*/

12)  To logout:
     a.  Type "lo" at the UNIX prompt.
     b.  Click on Log Out in window at upper left corner of screen

        BE SURE TO DO BOTH STEPS ABOVE.  IT IS NOT SUFFICIENT TO LOGOUT AT THE
        UNIX PROMPT.  YOU MUST ALSO CLICK THE LOG OUT OPTION ON THE LEFT SIDE
        OF THE SCEEEN.