Using cmd line when multiple quartus versions installed

If you are on Windows, an easy hack to use is to use the old "subst" command. Basically, you define a new letter mount to basically link to the different versions of Quartus, such that you can use a constant absolute path to Quartus.

Basically, you can add "z:\quartus\bin" to your search path (PATH) and then, based on the QSF setting, you dynamically change what Z: points to:

subst z: c:\acds91_path

or

subst z: c:\acds100_path

such that z:\quartus\bin\quartus*.exe are always the EXEs you use, only they magically point to different versions of Quartus.

You use Links to do the same on Linux.

Hope this helps.

DK