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AutoCAD Command line is a very powerful feature, and I don’t think replaceable. I know there are a lot of pros and cons about using command line in AutoCAD. But why not use both? Personally I like using command alias as shortcut, but I found that it’s difficult for people who rely heavily on this when learning other CAD application. But doesn’t matter. When you use AutoCAD, you’ll want to use it optimally right?
You can see the command alias list and customize your own shortcuts by accessing edit aliases in ribbon, manage tab, customization section.
Or if you use AutoCAD classic interface, you can access it from menu tool>customize>edit program parameters (acad.pgp)
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This will open your acad.pgp file in text editor (by default it’s notepad).

As you can see, this is a list of all your AutoCAD command aliases. They are your shortcuts. Mine is default, so aliases for line is L. When I type L then [enter] will activate the line tool. Typing LA [enter] will open the layer manager. Etc. They are very useful shortcuts to work faster!
AutoCAD commands don’t work like any other Windows applications. In Revit or Inventor, you simply press two keys as shortcut to activate a tool. No need to press [enter]. But in AutoCAD you can use single character, or more than two.
You can edit the command aliases and change them to what you want. After you finish, save this file. You might need to restart your AutoCAD after doing your modification. (Or you can run REINIT to reload your acad.pgp – thanks to Alex Serdakowski)
Updates
I have comments from Alex Serdakowski and Marty saying that there is another way to modify AutoCAD command aliases easily. We have to use express tool to do this. This tool name is Command Alias Editor. You can access it from menu: Express>Tools>Command Alias Editor.

It’s a great tool that I missed. If you haven’t had express tools installed, then you can’t use this tool.
Where’s the Complete List of AutoCAD Command?
You can see the whole AutoCAD command in AutoCAD help file. See under command reference>commands.

But do you really want to remember all of them? :)
So what is your favorite custom shortcut? I have some friends that use close character on keyboard so they can access it quickly. Even they don’t mean anything anymore. For example CC for copy. It’s faster than using CO or CP!
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