{{omit from|M4}}
{{omit from|TI-83 BASIC}} {{omit from|TI-89 BASIC}} <!-- Does not have an environment other than regular global variables. -->
{{omit from|Unlambda|Does not provide access to environment variables.}}

;Task:
Show how to get one of your process's [[wp:Environment variable|environment variables]].

The available variables vary by system; &nbsp; some of the common ones available on Unix include:
:::* &nbsp; PATH
:::* &nbsp; HOME
:::* &nbsp; USER
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