Eli5: Can Somebody explain to me what are environment variables? In windows, mac, when use them and examples like if i was 5
In: 3
They’re global data that a program might want to know. Often paths common programs.
“windir” for example, is the path to the Windows install, on my PC that is “C:WINDOWS”
The Environment variable “NUMBER_OF_PROCESSORS” on my PC is “16”
So, instead of needing to figure out the directory a programmer can just use “windir” and get the Windows path.
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