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BSD 2.11 - man page for learn (bsd section 1)

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LEARN(1)										 LEARN(1)

NAME
       learn - computer aided instruction about UNIX

SYNOPSIS
       learn [ -directory ] [ subject [ lesson ] ]

DESCRIPTION
       Learn  gives  Computer  Aided  Instruction  courses and practice in the use of UNIX, the C
       Shell, and the Berkeley text editors.  To get started simply type learn.  If you had  used
       learn before and left your last session without completing a subject, the program will use
       information in $HOME/.learnrc to start you up in the same place you left off.  Your  first
       time  through,  learn  will ask questions to find out what you want to do.  Some questions
       may be bypassed by naming a subject, and more yet by naming a lesson.  You may  enter  the
       lesson as a number that learn gave you in a previous session.  If you do not know the les-
       son number, you may enter the lesson as a word, and learn will look for the  first  lesson
       containing  it.	 If  the lesson is `-', learn prompts for each lesson; this is useful for
       debugging.

       The subject's presently handled are

	    files
	    editor
	    vi
	    morefiles
	    macros
	    eqn
	    C

       There are a few special commands.  The  command	`bye'  terminates  a  learn  session  and
       `where'	tells you of your progress, with `where m' telling you more.  The command `again'
       re-displays the text of the lesson and `again lesson' lets you review lesson.  There is no
       way  for  learn to tell you the answers it expects in English, however, the command `hint'
       prints the last part of the lesson script used to evaluate  a  response,  while	`hint  m'
       prints  the  whole lesson script.  This is useful for debugging lessons and might possibly
       give you an idea about what it expects.

       The -directory option allows one to exercise a script in a nonstandard place.

FILES
       /usr/share/learn    subtree for all dependent directories and files
       /usr/tmp/pl*   playpen directories
       $HOME/.learnrc startup information

SEE ALSO
       csh(1), ex(1)
       B. W. Kernighan and M. E. Lesk, LEARN - Computer-Aided Instruction on UNIX

BUGS
       The main strength of learn, that it asks the student to use the real UNIX, also makes pos-
       sible  baffling	mistakes.   It	is helpful, especially for nonprogrammers, to have a UNIX
       initiate near at hand during the first sessions.

       Occasionally lessons are incorrect, sometimes because the local version of a command oper-
       ates  in a non-standard way.  Occasionally a lesson script does not recognize all the dif-
       ferent correct responses, in which case the `hint' command may be  useful.   Such  lessons
       may  be skipped with the `skip' command, but it takes some sophistication to recognize the
       situation.

       To find a lesson given as a word, learn does a simple fgrep(1) through the lessons.  It is
       unclear whether this sort of subject indexing is better than none.

       Spawning a new shell is required for each of many user and internal functions.

       The  `vi'  lessons  are	provided separately from the others.  To use them see your system
       administrator.

7th Edition				 October 22, 1996				 LEARN(1)
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