LEARN(1)            UNIX Programmer's Manual             LEARN(1)

NAME
     learn - computer aided instruction about UNIX

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

DESCRIPTION
     _L_e_a_r_n gives CAI courses and practice in the use of UNIX.  To
     get started simply type 'learn'.  The program will ask ques-
     tions to find out what you want to do.  The questions may be
     bypassed by naming a _s_u_b_j_e_c_t, and the last _l_e_s_s_o_n number
     that _l_e_a_r_n told you in the previous session.  You may also
     include a _s_p_e_e_d number that was given with the lesson number
     (but without the parentheses that _l_e_a_r_n places around the
     speed number).  If _l_e_s_s_o_n is '-', _l_e_a_r_n prompts for each
     lesson; this is useful for debugging.

     The _s_u_b_j_e_c_t_s presently handled are

          editor eqn files macros morefiles C

     The special command 'bye' terminates a _l_e_a_r_n session.

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

FILES
     /usr/learn and all dependent directories and files

SEE ALSO
     M. E. Lesk and B. W. Kernighan, _L_e_a_r_n - _C_o_m_p_u_t_e_r _A_i_d_e_d
     _I_n_s_t_r_u_c_t_i_o_n _o_n _U_N_I_X

BUGS
     The main strength of _l_e_a_r_n, 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 ini-
     tiate near at hand during the first sessions.

     Occasionally lessons are incorrect, sometimes because the
     local version of command operates in a non-standard way.
     Such lessons may be skipped, but it takes some sophistica-
     tion to recognize the situation.

     Learn teaches the Bourne shell (sh(1)), and ed(1); Csh(1)
     and ex(1) are not supported.

Printed 7/25/83                                                 1