BSD 4_3 release
[unix-history] / usr / doc / usd / 02.learn / p0
CommitLineData
95f51977 1.\" @(#)p0 6.1 (Berkeley) 5/23/86
c1bf0a19
KD
2.\"
3.EH 'USD:2-%''LEARN \(em Computer-Aided Instruction on UNIX'
4.OH 'LEARN \(em Computer-Aided Instruction on UNIX''USD:2-%'
5.\".RP
6....TM "79-1274-xx 79-1273-yy" 39199 39199-11
7....ND June 18, 1976
8....TM "76-1274-6 76-1273-5" 39199 39199-11
9.TL
10LEARN \(em Computer-Aided Instruction on UNIX
11.br
12(Second Edition)
13.AU "MH 2C-518" 6021
14Brian W. Kernighan
15.AU "MH 2C-569" 6377
16Michael E. Lesk
17.AI
18.MH
19.AB
20.PP
21This paper describes the
22second version of the
23.I
24learn
25.R
26program for interpreting CAI
27scripts on
28the
29.UX
30operating system,
31and a set of scripts that provide a computerized introduction
32to the system.
33.PP
34Six current scripts cover basic commands and file
35handling, the editor, additional file handling commands, the
36.I
37eqn
38.R
39program for mathematical
40typing,
41the ``\-ms'' package of formatting macros,
42and an introduction to the C programming language.
43These scripts now include a total of
44about 530 lessons.
45.PP
46Many users from a wide variety of backgrounds have used
47.I learn
48to acquire basic UNIX skills.
49Most usage involves the first two scripts,
50an introduction to
51.UX
52files and commands, and
53the
54.UX
55editor.
56.PP
57The second version of
58.I learn
59is about four times faster than the previous one
60in CPU utilization,
61and much faster in perceived time
62because of better overlap of computing and printing.
63It also requires less file space than the first version.
64Many of the lessons have been revised;
65new material has been added to reflect changes
66and enhancements in
67.UX
68itself.
69Script-writing is also easier
70because of revisions to the script language.
71.AE
72.CS 11 2 13 4 0 0