| 1 | .TH LEARN 1 |
| 2 | .SH NAME |
| 3 | learn \- computer aided instruction about UNIX |
| 4 | .SH SYNOPSIS |
| 5 | .B learn |
| 6 | [ |
| 7 | .BR \- directory |
| 8 | ] |
| 9 | [ subject [ lesson [ speed ] ] ] |
| 10 | .SH DESCRIPTION |
| 11 | .I Learn |
| 12 | gives CAI courses and practice in the use of UNIX. |
| 13 | To get started |
| 14 | simply type `learn'. |
| 15 | The program will ask questions to find out what |
| 16 | you want to do. |
| 17 | The questions may be bypassed by naming a |
| 18 | .I subject, |
| 19 | and the last |
| 20 | .I lesson |
| 21 | number that |
| 22 | .I learn |
| 23 | told you in the previous session. |
| 24 | You may also include a |
| 25 | .I speed |
| 26 | number that was given with the lesson number |
| 27 | (but without the parentheses that |
| 28 | .I learn |
| 29 | places around the speed number). |
| 30 | If |
| 31 | .I lesson |
| 32 | is `\-', |
| 33 | .I learn |
| 34 | prompts for each lesson; |
| 35 | this is useful for debugging. |
| 36 | .PP |
| 37 | The |
| 38 | .I subjects |
| 39 | presently handled are |
| 40 | .IP " " |
| 41 | .nf |
| 42 | editor |
| 43 | eqn |
| 44 | files |
| 45 | macros |
| 46 | morefiles |
| 47 | C |
| 48 | .fi |
| 49 | .PP |
| 50 | The special command |
| 51 | `bye' terminates a |
| 52 | .I learn |
| 53 | session. |
| 54 | .PP |
| 55 | The |
| 56 | .BI \- directory |
| 57 | option allows one to exercise a script in |
| 58 | a nonstandard place. |
| 59 | .SH FILES |
| 60 | /usr/learn and all dependent directories and files |
| 61 | .SH BUGS |
| 62 | The main strength of |
| 63 | .I learn, |
| 64 | that it asks the student to use the real |
| 65 | UNIX, also makes possible baffling mistakes. |
| 66 | It is helpful, especially for nonprogrammers, |
| 67 | to have a UNIX initiate near at hand during the first |
| 68 | sessions. |
| 69 | .PP |
| 70 | Occasionally lessons are incorrect, sometimes because the local version |
| 71 | of a command operates in a non-standard way. |
| 72 | Such lessons may be skipped, |
| 73 | but it takes some sophistication to recognize |
| 74 | the situation. |