learn man page on Ultrix

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learn(1)			  Unsupported			      learn(1)

Name
       learn - computer aided instruction about UNIX

Syntax
       learn [ -directory ] [ subject [ lesson ] ]

Description
       The  command  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.  The program will ask questions to find out
       what you want to do.  Some questions may be bypassed by naming  a  sub‐
       ject,  and  more yet by naming a lesson.	 You may enter the lesson as a
       number that gave you in a previous session.  If you  do	not  know  the
       lesson  number,	you  may enter the lesson as a word, and will look for
       the first lesson containing it.	If the lesson is `-', prompts for each
       lesson; this is useful for debugging.

       The subjects presently handled are

		  files
		  editor
		  vi
		  morefiles
		  macros
		  eqn
		  C

       There  are a few special commands.  The command `bye' terminates a ses‐
       sion 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.

Options
       -directory     Allows one to exercise a script in a nonstandard place.

Restrictions
       The main strength of that it asks the student to	 use  the  real	 UNIX,
       also  makes  possible 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 operates in a  non-standard	 way.	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, does a simple	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.

Files
       /usr/lib/learn subtree for all dependent directories and files
       /usr/tmp/pl∗   playpen directories

See Also
       csh(1), ex(1)

								      learn(1)
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