is a global variable whose value is the name of the stream from which input to the Wolfram Language is currently being sought.


$Input
is a global variable whose value is the name of the stream from which input to the Wolfram Language is currently being sought.
Examples
Basic Examples (2)
Tech Notes
Related Guides
History
Introduced in 1991 (2.0)
Text
Wolfram Research (1991), $Input, Wolfram Language function, https://reference.wolfram.com/language/ref/$Input.html.
CMS
Wolfram Language. 1991. "$Input." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$Input.html.
APA
Wolfram Language. (1991). $Input. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$Input.html
BibTeX
@misc{reference.wolfram_2025_$input, author="Wolfram Research", title="{$Input}", year="1991", howpublished="\url{https://reference.wolfram.com/language/ref/$Input.html}", note=[Accessed: 08-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_$input, organization={Wolfram Research}, title={$Input}, year={1991}, url={https://reference.wolfram.com/language/ref/$Input.html}, note=[Accessed: 08-August-2025]}