Do Windows libraries have an environment variable?
114278
Environment Variables for Windows' Built-in Libraries?
10471
How do I add environment variables?
67141
How to set system-wide environment variables on OS X Mavericks
85226
Set environment variables on Mac OS X Lion
122936
Indirectly access environment variable
35241
Environment variables in PowerShell with a dot (.) in the name
97567
How do I set persistent environment variables for root?
100664
Is char *envp[] as a third argument to main() portable
22578
How do I set an environment variable on the command line and have it appear in commands?
139705
Setting or modifying a (system wide) environment variable in cmd.exe
22321
How do I add Python to the Windows PATH?
84125
How can I specify a [DllImport] path at runtime?
91568
How to correctly escape command arguments from an environment variable
28269
Referencing environment variables *in* /etc/environment?
26822
How to restore the Path environment variable I deleted?
116598
Environment variables when run with 'sudo'
86391
Why are non-environment variables passed to the subshell invoqued by command substitution?