What Are AutoCAD Commands?
AutoCAD commands are instructions that tell the software what operation you want it to perform. Instead of manually searching through different menus for every operation, you can type a command directly into the Command Line.
For instance, typing LINE and pressing Enter activates the Line command. AutoCAD then prompts you to specify the first point and the second point of the line.
Similarly, CIRCLE creates circles, MOVE relocates objects, COPY duplicates objects, TRIM removes unwanted portions, OFFSET creates parallel or concentric objects, FILLET creates rounded corners, HATCH fills enclosed areas, SCALE changes object size, and ZOOM changes the magnification of your view.
Therefore, learning commands gives beginners a practical way to communicate with AutoCAD and control their drawings more efficiently.
How AutoCAD Commands Are Used
Most AutoCAD commands follow a simple sequence:
Start command → Select objects or specify points → Enter values/options → Complete the command
For example, if you want to move a rectangle:
- Type MOVE.
- Press Enter.
- Select the rectangle.
- Press Enter.
- Specify a base point.
- Specify the new location.
- Press Enter if necessary.
The exact prompts depend on the command. Consequently, beginners should develop the habit of reading the Command Line instead of immediately clicking around the screen.
Essential AutoCAD Drawing and Modification Commands
LINE: The LINE command creates straight-line segments between specified points. It is commonly used for building outlines, property boundaries, engineering layouts, road alignments, and surveying drawings.
CIRCLE: The CIRCLE command creates circles using different methods, including specifying a center and radius.
RECTANGLE: RECTANGLE allows you to create rectangular shapes quickly by specifying two opposite corners. It is useful for rooms, doors, windows, equipment layouts, building footprints, and simple mechanical components.
MOVE: The MOVE command changes the position of an object without changing its size or shape.
COPY: COPY creates duplicates of existing objects while leaving the original object in its original location.
TRIM: TRIM removes portions of objects that extend beyond a desired boundary.
EXTEND: EXTEND allows objects to be lengthened until they meet a selected boundary. Together, TRIM and EXTEND are two of the most frequently used modification commands in everyday drafting.
Using the Hatch tool: Creating Patterns and Fills
Hatching is used to fill enclosed areas with patterns or solid fills. If you’re searching for AutoCAD how to hatch, begin by creating or identifying a closed boundary.
To hatch an area:
- Type HATCH.
- Press Enter.
- Select the desired hatch pattern.
- Use Pick Points to click inside a closed area, or select boundary objects.
- Adjust the hatch scale, angle, transparency, or pattern if necessary.
- Press Enter to complete the operation.
If your hatch looks too dense or too spread out, check the Hatch Scale value. A scale suitable for one drawing may look very different in another.
How to use the Fillet tool: Creating Rounded Corners
The FILLET command creates a rounded connection between two objects.
If you’re searching for AutoCAD how to fillet, the basic workflow is:
- Type FILLET.
- Press Enter.
- Select the Radius option if necessary.
- Enter the desired radius.
- Select the first object.
- Select the second object.
AutoCAD creates an arc that is tangent to the selected objects. Depending on the geometry and settings, the objects may be trimmed or extended to accommodate the fillet.
A radius of 0 can also be used when you want AutoCAD to extend or trim objects until they meet at a sharp corner.
How to Offset Objects
The OFFSET command creates a parallel or concentric copy of an object at a specified distance.
To use it:
- Type OFFSET.
- Press Enter.
- Enter the offset distance.
- Select the object.
- Click the side where you want the new object.
- Continue selecting objects or press Enter to finish.
OFFSET is especially useful for architectural plans, road layouts, boundaries, engineering drawings, and many other applications.
How to Scale Objects
The SCALE command changes the size of selected objects while maintaining their proportions.
The basic procedure is:
- Type SCALE.
- Press Enter.
- Select the object.
- Press Enter.
- Specify a base point.
- Enter the scale factor.
A scale factor of 2 makes an object twice as large, while 0.5 makes it half its original size.
Remember that scaling an object is different from zooming the drawing. Scaling changes the object’s actual size; zooming changes only how large it appears on your screen.
How to Change Units in AutoCAD
Setting the correct drawing units is one of the most important steps when beginning an AutoCAD project.
If you’re searching for AutoCAD how to change units, type:
UNITS
and press Enter.
The Drawing Units dialog allows you to control the format and precision used to display distances and angles.
Depending on the project, you might work with millimeters, centimeters, meters, inches, feet, or other supported units.
However, simply changing the displayed unit format does not automatically mean that existing objects have been physically converted to a different size. Therefore, always consider units carefully when transferring drawings between files.
Zoom to Fit Command in AutoCAD
If you suddenly cannot find your objects because you have zoomed too far into the drawing, the Zoom Extents option can help.
Type:
ZOOM
Press Enter, then choose:
E
for Extents.
Zoom Extents adjusts the view to display the maximum extents of the objects in the drawing. Importantly, zooming does not change the actual size of your objects; it changes only the magnification of your view.
Tips for Learning AutoCAD Commands Faster
1. Learn Commands Through Projects
Instead of memorizing OFFSET as an isolated command, use it while drawing a floor plan. This gives the command a practical context.
2. Learn Command Shortcuts
Once you understand a command, learn its keyboard shortcut or alias. This can significantly improve your workflow.
3. Read the Command Line
The Command Line often tells you exactly what AutoCAD needs next. Therefore, do not ignore its prompts.
4. Practice Related Commands Together
Practice workflows such as:
LINE → OFFSET → TRIM → FILLET
rather than learning every command independently.
5. Start With Simple Drawings
Create a simple floor plan, mechanical component, site layout, or geometric drawing. Then challenge yourself to reproduce it using fewer manual operations.
6. Learn From Your Mistakes
When a command produces an unexpected result, find out why instead of simply undoing it and moving on. That process is often where real learning occurs.
Where to learn AutoCAD?
Enrol for the AutoCAD training program at Geoinfoacademy today.
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