If you install Git for Windows (https://git-for-windows.github.io/) you get a console
,either CMD or MINTT, which returns MINGW* for uname -s. So if you run blackbox_addadmin
or the other commands, you'll get: "ERROR: Unknown OS. Exiting."
I've simply added MINGW* to the Linux and CYGWIN checks and it seems to work fine.
NOTE: I didn't touch tools/test_functions.sh allthough it should probably be updated as well.
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