Upper Dry Gulch Natural Area Preserve (dnr.wa.gov)

excerpt

This 3,087-acre preserve protects the largest known population of Whited’s milkvetch, a state-listed “endangered” plant species that is found only within a 3-square-mile area. Situated in the arid mountains southeast of Wenatchee, this site is dominated by a native shrub and bunchgrass (shrub-steppe) ecosystem that is recovering from past land uses. The drainage that flows through the site carries water seasonally and is subject to torrential flows during spring. The loggerhead shrike, a bird species known to be highly dependent on shrub-steppe habitat, is also known to frequent this area.

Why are there both TMP and TEMP environment variables, and which one is right? (devblogs.microsoft.com) If you snoop around your environment variables, you may notice that there are two variables that propose to specify the location of temporary files. There is one called TMP and another called TEMP. Why two? And if they disagree, then who’s right?