OverwriteTarget
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OverwriteTarget
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is an option for functions like CopyFile that specifies whether to overwrite if target files already exist.
Examples
Basic Examples (1)Summary of the most common use cases
In[1]:=1

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https://wolfram.com/xid/0cf3phbfj58sjcm-o2htcr
Out[1]=1

Copy the file to a new location:
In[2]:=2

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https://wolfram.com/xid/0cf3phbfj58sjcm-p3rk5l
Out[2]=2

Copying the file back fails with OverwriteTarget->False:
In[3]:=3

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https://wolfram.com/xid/0cf3phbfj58sjcm-9apo9i

Out[3]=3

Use OverwriteTarget->True to overwrite the existing file:
In[4]:=4

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https://wolfram.com/xid/0cf3phbfj58sjcm-45k5zp
Out[4]=4

Wolfram Research (2016), OverwriteTarget, Wolfram Language function, https://reference.wolfram.com/language/ref/OverwriteTarget.html.
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Wolfram Research (2016), OverwriteTarget, Wolfram Language function, https://reference.wolfram.com/language/ref/OverwriteTarget.html.
Text
Wolfram Research (2016), OverwriteTarget, Wolfram Language function, https://reference.wolfram.com/language/ref/OverwriteTarget.html.
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Wolfram Research (2016), OverwriteTarget, Wolfram Language function, https://reference.wolfram.com/language/ref/OverwriteTarget.html.
CMS
Wolfram Language. 2016. "OverwriteTarget." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/OverwriteTarget.html.
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Wolfram Language. 2016. "OverwriteTarget." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/OverwriteTarget.html.
APA
Wolfram Language. (2016). OverwriteTarget. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/OverwriteTarget.html
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Wolfram Language. (2016). OverwriteTarget. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/OverwriteTarget.html
BibTeX
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@misc{reference.wolfram_2025_overwritetarget, author="Wolfram Research", title="{OverwriteTarget}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/OverwriteTarget.html}", note=[Accessed: 26-March-2025
]}
BibLaTeX
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@online{reference.wolfram_2025_overwritetarget, organization={Wolfram Research}, title={OverwriteTarget}, year={2016}, url={https://reference.wolfram.com/language/ref/OverwriteTarget.html}, note=[Accessed: 26-March-2025
]}