F2: Command History
F3: Object Snap - locks cursor to geometric points
F7: Grid On/Off
F8: Ortho - Restricts to horizontal/vertical directions
F9: Snap Mode - Cursor snaps to nearest grid point
F10: Polar Tracking - Shows reference lines to help draw at angles
F11: Snap tracking On/Off
F12: Display dimensions/coordinates of cursor
Ctrl+0: Clean screen
Ctrl+1: Open properties window
Ctrl+2: Open design center palette
Ctrl+3: Tool palettes
Ctrl+8: Open calculator
Options(OP): Open options window
Files: Browse files
Display: Change displays
Open&save: Save CAD
Plot&publish: Download file
Drafting Settings(DS): Open drafting settings
Snap & grid: Enable snap on & change snap interval. Enable grid and change spacing size
Polar tracking: Change angle increment
Object snap: Enable/disable properties
Dynamic input: Input values & settings for cursor
Unit(UN): Change unit settings
Limits(LIMITS): Specify working boundary
Create Shapes
Line(L): Draw line
Circle(C): Draw circle
Rectangle(REC): Draw rectangle
Ellipse(EL): Draw ellipse
Polygon(POL): Create polygon
Arc(A): Draw arc
Polyline(PL): Draw polyline
Smooth polyline(SPL): Create irregular shapes with non-uniform points
Edit Objects
Text(T): Create text
Copy(C): create duplicate of selected objects
Move(M): Move object
Erase(E): Remove unwanted objects
Trim(T): Remove unwanted portion of object
Rotate(RO): Rotate object
Mirror(MI): Invert dimensions of selected objects
Join(J): Join two objects
Offset(O): Create duplicate of object from center
Array(AR): Create rows & columns of duplicated objects
Chamfer(CHA): Flatten edge/corner of object
Fillet(F): Curve edges of object
Polyedit(PE): Close, open, and join segments. Also converts to SPLINE
Divide(DIV): Divide single entity to multiple parts
Hatch(H): Create hatch patterns
Dimension Measurement
Dimension style(D): Create & modify dimension styles
Dimension linear(DLI): Measure linear dimensions
Dimensions aligned(DAL): Measure linear & diagonal lines
Dimension angular(DAN): Measure angular distance
Dimension arc(DAR): Measure length of arc
Dimension dia.(DDI): Measure diameter of circle
Dimension rad.(DRA): Measure radius of circle
Distance(DI): Measure path (result given in command window)
Area(AA): Measure area & perimeter (result given in command window)
Blocks
Block(B): Combine objects into a block
Block edit(BE): Edit blocks
Block save(BS): Save changes to a block
Block close(BC): Exit block editor
Layering
Layer(LA): Add & edit layers & group lines among drawing
Layer on(LAYON): Make layer category visible
Layer off(LAYOFF): Hide layer category
Layer freeze(LAYFRZ): Hide layer without slowing performance
Layer lock(LAYLCK): lock layer to prevent making unwanted changes
Layer delete(LAYDEL): Remove layer
Line type(LT): Change line type of layer
Extra
Explode(X): Break object
Scale(SC): Change object size
Pan(P): Move drawing view
Match(MA): Match object layers
External Reference(XREF): Attach drawings from other files
Regeneration(RE): Smooth lines & shapes after zooming in
UCSICON: Freeze origin
Print(Ctrl+P): Choose how to print drawing