Environment["var"]
gives the value of an operating system environment variable.
Environment
Environment["var"]
gives the value of an operating system environment variable.
Details
- The values of environment variables are returned by Environment as strings.
- Environment returns $Failed if it cannot find a value for the operating system variable you requested.
- The behavior of Environment depends on the computer system you are using.
Examples
Basic Examples (1)
Environment["HOME"]Tech Notes
History
Introduced in 1988 (1.0)
Text
Wolfram Research (1988), Environment, Wolfram Language function, https://reference.wolfram.com/language/ref/Environment.html.
CMS
Wolfram Language. 1988. "Environment." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/Environment.html.
APA
Wolfram Language. (1988). Environment. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Environment.html
BibTeX
@misc{reference.wolfram_2026_environment, author="Wolfram Research", title="{Environment}", year="1988", howpublished="\url{https://reference.wolfram.com/language/ref/Environment.html}", note=[Accessed: 12-June-2026]}
BibLaTeX
@online{reference.wolfram_2026_environment, organization={Wolfram Research}, title={Environment}, year={1988}, url={https://reference.wolfram.com/language/ref/Environment.html}, note=[Accessed: 12-June-2026]}