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FileExistsQ
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FileExistsQ

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FileExistsQ["name"]

gives True if the file with the specified name exists, and gives False otherwise.

Details

Examples

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

Check if a file exists:

In[1]:=1
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https://wolfram.com/xid/0h2kt4vkeb-erybo0
Out[1]=1

Create a file:

In[1]:=1
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https://wolfram.com/xid/0h2kt4vkeb-msb7p

Check if the file exists:

In[2]:=2
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https://wolfram.com/xid/0h2kt4vkeb-o77gvy
Out[2]=2

Delete the file:

In[3]:=3
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https://wolfram.com/xid/0h2kt4vkeb-e8m8nv

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

Check if the file specified by the File object exists:

In[1]:=1
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https://wolfram.com/xid/0h2kt4vkeb-nmjj2
In[2]:=2
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https://wolfram.com/xid/0h2kt4vkeb-bzvdwh
Out[2]=2
Wolfram Research (2008), FileExistsQ, Wolfram Language function, https://reference.wolfram.com/language/ref/FileExistsQ.html (updated 2016).
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Wolfram Research (2008), FileExistsQ, Wolfram Language function, https://reference.wolfram.com/language/ref/FileExistsQ.html (updated 2016).

Text

Wolfram Research (2008), FileExistsQ, Wolfram Language function, https://reference.wolfram.com/language/ref/FileExistsQ.html (updated 2016).

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Wolfram Research (2008), FileExistsQ, Wolfram Language function, https://reference.wolfram.com/language/ref/FileExistsQ.html (updated 2016).

CMS

Wolfram Language. 2008. "FileExistsQ." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2016. https://reference.wolfram.com/language/ref/FileExistsQ.html.

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Wolfram Language. 2008. "FileExistsQ." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2016. https://reference.wolfram.com/language/ref/FileExistsQ.html.

APA

Wolfram Language. (2008). FileExistsQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FileExistsQ.html

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Wolfram Language. (2008). FileExistsQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FileExistsQ.html

BibTeX

@misc{reference.wolfram_2025_fileexistsq, author="Wolfram Research", title="{FileExistsQ}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/FileExistsQ.html}", note=[Accessed: 25-March-2025 ]}

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@misc{reference.wolfram_2025_fileexistsq, author="Wolfram Research", title="{FileExistsQ}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/FileExistsQ.html}", note=[Accessed: 25-March-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_fileexistsq, organization={Wolfram Research}, title={FileExistsQ}, year={2016}, url={https://reference.wolfram.com/language/ref/FileExistsQ.html}, note=[Accessed: 25-March-2025 ]}

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@online{reference.wolfram_2025_fileexistsq, organization={Wolfram Research}, title={FileExistsQ}, year={2016}, url={https://reference.wolfram.com/language/ref/FileExistsQ.html}, note=[Accessed: 25-March-2025 ]}