Watch Environment Variables

Environment variables have long been used in computer operating systems. To display environment variables, check "Watch Environment Variables" under "view" menu. PowerCmd allows you to change environment variables from the watch window directly.

From the column header context menu, you can "Refresh" current variables, or save all environment variables and reload them later.

You may be able to find undocumented environment variables that you never see them before, such as "=U:" on the left image. "=U:" is the working directory of volume U if you have ever changed the working directory of that volume.