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SetEnvironment

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SetEnvironment["var" -> "value"]

sets the value of an operating system environment variable.

SetEnvironment[{"var" -> "value", ...}]

sets more than one environment variable.

Set a single environment variable:

• • SetEnvironment["FOO" -> "bar"]

See that the environment variable has changed:

• • GetEnvironment["FOO"]

Set two environment variables:

• • SetEnvironment[{"FOO" -> "baz", "A" -> "B"}]

See that the environment variable has changed:

• • GetEnvironment["FOO"]

Environment values must be strings:

• • SetEnvironment["FOO" -> 5]

• • GetEnvironment["FOO"]

If the environment name is not a string, the evaluation fails without a message.

• • SetEnvironment[1 -> "bar"]

See also Environment and GeEnvironment.