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FileByteCount
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FileByteCount

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gives the number of bytes in a file.

Details

  • The file in FileByteCount can be specified by giving the path to the file as a string or a File object.
  • If a particular file is moved from one computer system to another, the number of bytes in the file as reported by FileByteCount may change.
  • FileByteCount also works with cloud objects.

Examples

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Basic Examples  (1)Summary of the most common use cases

The number of bytes in a file:

In[1]:=1
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https://wolfram.com/xid/0b0kmo76nyq-6pjqah
Out[1]=1

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

Get the number of bytes in the file specified by the File object:

In[1]:=1
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https://wolfram.com/xid/0b0kmo76nyq-bzvdwh
Out[1]=1

Properties & Relations  (1)Properties of the function, and connections to other functions

FileSize gives the same number of bytes as FileByteCount:

In[1]:=1
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https://wolfram.com/xid/0b0kmo76nyq-d56t5b
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0b0kmo76nyq-g6ibcx
Out[2]=2
Wolfram Research (1991), FileByteCount, Wolfram Language function, https://reference.wolfram.com/language/ref/FileByteCount.html (updated 2016).
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Wolfram Research (1991), FileByteCount, Wolfram Language function, https://reference.wolfram.com/language/ref/FileByteCount.html (updated 2016).

Text

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

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

CMS

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

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

APA

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

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

BibTeX

@misc{reference.wolfram_2025_filebytecount, author="Wolfram Research", title="{FileByteCount}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/FileByteCount.html}", note=[Accessed: 25-May-2025 ]}

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@misc{reference.wolfram_2025_filebytecount, author="Wolfram Research", title="{FileByteCount}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/FileByteCount.html}", note=[Accessed: 25-May-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_filebytecount, organization={Wolfram Research}, title={FileByteCount}, year={2016}, url={https://reference.wolfram.com/language/ref/FileByteCount.html}, note=[Accessed: 25-May-2025 ]}

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@online{reference.wolfram_2025_filebytecount, organization={Wolfram Research}, title={FileByteCount}, year={2016}, url={https://reference.wolfram.com/language/ref/FileByteCount.html}, note=[Accessed: 25-May-2025 ]}