I introduced environment variables in Chapter 2 with the set command, and they have found their way onto nearly every page since. You can define and resolve a simple variable and then maybe reset and use it again in various ways. Pseudo-environment variables are similar but also quite distinct. You can resolve them just like regular environment variables, but their origins or how they are set are substantially different.
We’ve already discussed a few pseudo-environment variables, including path, pathext, cd, and errorlevel. All pseudo-environment variables share some characteristics, but many have unique qualities. ...
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