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FileType

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FileType["file"]

gives the type of a file, typically File, Directory, or None.

Details

Examples

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Basic Examples  (2)Summary of the most common use cases

$UserBaseDirectory is a directory:

In[1]:=1
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https://wolfram.com/xid/0e7npnni-6pjqah
Out[1]=1

A typical file in the Wolfram System program layout:

In[1]:=1
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https://wolfram.com/xid/0e7npnni-2mya4j
Out[1]=1

Scope  (1)Survey of the scope of standard use cases

Find the type of the file specified by the File object:

In[1]:=1
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https://wolfram.com/xid/0e7npnni-byirv4
In[2]:=2
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https://wolfram.com/xid/0e7npnni-bzvdwh
Out[2]=2
Wolfram Research (1991), FileType, Wolfram Language function, https://reference.wolfram.com/language/ref/FileType.html (updated 2016).
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Wolfram Research (1991), FileType, Wolfram Language function, https://reference.wolfram.com/language/ref/FileType.html (updated 2016).

Text

Wolfram Research (1991), FileType, Wolfram Language function, https://reference.wolfram.com/language/ref/FileType.html (updated 2016).

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Wolfram Research (1991), FileType, Wolfram Language function, https://reference.wolfram.com/language/ref/FileType.html (updated 2016).

CMS

Wolfram Language. 1991. "FileType." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2016. https://reference.wolfram.com/language/ref/FileType.html.

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Wolfram Language. 1991. "FileType." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2016. https://reference.wolfram.com/language/ref/FileType.html.

APA

Wolfram Language. (1991). FileType. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FileType.html

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Wolfram Language. (1991). FileType. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FileType.html

BibTeX

@misc{reference.wolfram_2025_filetype, author="Wolfram Research", title="{FileType}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/FileType.html}", note=[Accessed: 29-March-2025 ]}

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@misc{reference.wolfram_2025_filetype, author="Wolfram Research", title="{FileType}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/FileType.html}", note=[Accessed: 29-March-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_filetype, organization={Wolfram Research}, title={FileType}, year={2016}, url={https://reference.wolfram.com/language/ref/FileType.html}, note=[Accessed: 29-March-2025 ]}

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@online{reference.wolfram_2025_filetype, organization={Wolfram Research}, title={FileType}, year={2016}, url={https://reference.wolfram.com/language/ref/FileType.html}, note=[Accessed: 29-March-2025 ]}