Zen and the Art of AutoCAD

Here's a semester of AutoCAD in one hour. There is a companion guide that is available here:
docs.google.com/document/d/1x...
Here are the system variables the way they are used in the video:
OSMODE 39
DYNMODE 0
DYNPICOORDS 1
MENUBAR 1
LWDISPLAY on
SNAPMODE 0
TRIMEXTENDMODE 0
0:00 Introduction
1:09 NEW
2:23 Command Line Ctrl + 9
3:38 Text Window F2
4:08 System Variables
5:07 View Controls - P, Z
6:11 Coordinate Space X, Y, Z
7:50 LIST
8:14 OSNAP - Object Snaps
10:08 OSMODE - System Variable
11:05 F8 ORTHO/ORTHOMODE
11:35 UNITS
13:36 -*-*-* Draw Commands -*-*-*
13:38 L - LINE
16:01 Hint - Using the spacebar
17:17 C - CIRCLE
18:04 HINT - Option Capitalization
19:36 POINT
19:49 DDPTYPE
20:14 NOD
20:30 PLINE - POLYLINE
21:39 PEDIT - Edit a polyline
22:07 BPOLY - Boundary Polyline
22:49 BHATCH - Boundary Hatch
23:28 TEXT - Single Line Text
24:13 STYLE - Text Style
25:00 MO - Modify PROPERTIES
25:44 MTEXT - Multiline Text
26:17 -AR -ARRAY (or ARRAY)
28:55 -*-*-* Edit Commands -*-*-*
29:01 M - MOVE
31:21 Selecting Objects
31:37 Window Selection
31:58 Crossing Selection
32:24 Crossing Polygon
32:39 Window Polygon
32:48 Remove from Selection
33:06 P - Previous Selection
33:21 L - Last Object Created
33:27 ALL - Select All
33:41 F - Fence
33:56 Shift + Select to Unselect
34:11 CO - COPY
34:55 TR - TRIM
34:56 TRIMEXTENDMODE
36:35 EX - EXTEND
37:00 MI - MIRROR
38:23 MIRTEXT
38:57 F - FILLET
39:33 S - STRETCH
40:31 SC - SCALE
41:23 'CAL - Calculate
43:00 HINT - Don't draw lines in segments
43:10 HINT - Don't draw lines on top of lines
43:58 O - OFFSET
45:34 MO - PROPERTIES Modify Properties
46:00 -*-*-* Dimension Commands -*-*-*
46:08 DIMSCALE
46:20 DLI - Linear Dimension
47:09 Edit Dimension Text
48:00 DAL - Aligned Dimension
48:26 DIMANG - Angular Dimension
48:48 DIMDIA - Diameter Dimension
48:59 DIMRAD - Radius Dimension
49:10 -DIMSTYLE; Apply
49:34 DDIM or DIMSTYLE
50:00 -*-*-* Block Commands -*-*-*
51:00 BLOCK
51:57 INSERT
52:00 WBLOCK
52:20 BEDIT
53:25 ATTDEF
54:18 EXPLODE
55:31 DDATTE
55:47 -*-*-* Layers -*-*-*
57:00 -*-*-* Measure & Divide -*-*-*
57:13 MEASURE
58:00 DIVIDE
59:37 Closing Remarks

[@viharpatel8195]

I have been learning a lot from videos.