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Save
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Save

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Save["filename",symbol]

appends definitions associated with the specified symbol to a file.

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Save["filename","patt"]

appends definitions associated with all symbols whose names match the string pattern "patt".

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Save["filename","context`"]

appends definitions associated with all symbols in the specified context.

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Save["filename",{object1,object2,…}]

appends definitions associated with several objects.

Details and Options

  • Save uses FullDefinition to include subsidiary definitions.
  • Save writes out definitions in InputForm.
  • Save uses Names to find symbols whose names match a given string pattern.
  • You can use Save["filename","s"] to write out the definition for the value of a symbol s itself.
  • Save works with local and cloud objects.
  • Save[File["filename"],…] is also supported.
  • The following options can be given:
  • ExcludedContexts Automaticcontexts excluded from recursive inclusion
    IncludedContexts Allcontexts considered for recursive inclusion

Examples

open allclose all

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

Create a temporary file:

In[1]:=1
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https://wolfram.com/xid/0dehyq-5gsu8b
Out[1]=1

Store a value in a variable:

In[2]:=2
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https://wolfram.com/xid/0dehyq-f12661

Save the value of the variable in a file:

In[3]:=3
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https://wolfram.com/xid/0dehyq-wd4v02

Loading the file restores the value of a:

In[4]:=4
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https://wolfram.com/xid/0dehyq-9aqidl
In[5]:=5
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https://wolfram.com/xid/0dehyq-mkj09b
In[6]:=6
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https://wolfram.com/xid/0dehyq-vb0e4x
Out[6]=6
In[7]:=7
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https://wolfram.com/xid/0dehyq-n6u8v8

Create multiple definitions to save:

In[1]:=1
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https://wolfram.com/xid/0dehyq-cli7zk

Save the definitions to standard out to see how they would be written to a file:

In[2]:=2
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https://wolfram.com/xid/0dehyq-gzks5w

Scope  (3)Survey of the scope of standard use cases

Save a definition into a file specified by the File object:

In[1]:=1
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https://wolfram.com/xid/0dehyq-hrlyj9
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0dehyq-maythx
In[3]:=3
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https://wolfram.com/xid/0dehyq-cpyngv
In[4]:=4
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https://wolfram.com/xid/0dehyq-gpj03s
In[5]:=5
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https://wolfram.com/xid/0dehyq-cvtvb
Out[5]=5
In[6]:=6
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https://wolfram.com/xid/0dehyq-cgfp9

Local objects can be used with Save to save definitions persistently:

In[1]:=1
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https://wolfram.com/xid/0dehyq-4btbbh
In[2]:=2
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https://wolfram.com/xid/0dehyq-b345oq
Out[2]=2

Cloud objects can be used with Save to save definitions in the cloud:

In[1]:=1
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https://wolfram.com/xid/0dehyq-m267bx
In[2]:=2
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https://wolfram.com/xid/0dehyq-dxttny
Out[2]=2

Options  (2)Common values & functionality for each option

ExcludedContexts  (1)

By default, certain system-internal contexts are excluded from recursive inclusions:

In[1]:=1
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https://wolfram.com/xid/0dehyq-vqaal5
In[2]:=2
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https://wolfram.com/xid/0dehyq-n3auqk

Use ExcludedContexts{} to save definitions of all non-protected symbols:

In[3]:=3
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https://wolfram.com/xid/0dehyq-bgvoaa

IncludedContexts  (1)

Limit recursive inclusion of symbols to the contexts "c1`" and "c2`" only:

In[1]:=1
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https://wolfram.com/xid/0dehyq-b4bbdv
In[5]:=5
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https://wolfram.com/xid/0dehyq-cwlqvd

Applications  (1)Sample problems that can be solved with this function

Save all definitions in the default context:

In[1]:=1
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https://wolfram.com/xid/0dehyq-cjzbw0
In[2]:=2
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https://wolfram.com/xid/0dehyq-nnj2h

Properties & Relations  (3)Properties of the function, and connections to other functions

Save writes the output of FullDefinition to a file:

In[1]:=1
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https://wolfram.com/xid/0dehyq-h9fdu5
In[2]:=2
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https://wolfram.com/xid/0dehyq-cqu14g
In[3]:=3
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https://wolfram.com/xid/0dehyq-pljam

Saved definitions can be read into the Wolfram Language using Get:

In[1]:=1
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https://wolfram.com/xid/0dehyq-fsqufo
In[2]:=2
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https://wolfram.com/xid/0dehyq-j3tiit
Out[2]=2
In[3]:=3
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https://wolfram.com/xid/0dehyq-enk699

Print the contents of the saved file:

In[4]:=4
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https://wolfram.com/xid/0dehyq-dnc59

Clear definitions in the current session:

In[5]:=5
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https://wolfram.com/xid/0dehyq-6w2l4
Out[5]=5

Get the definitions into the current session:

In[6]:=6
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https://wolfram.com/xid/0dehyq-dv8e3i
In[7]:=7
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https://wolfram.com/xid/0dehyq-czhy9d
Out[7]=7

By default, definitions attached to "System`" symbols are not pulled in:

In[1]:=1
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https://wolfram.com/xid/0dehyq-5yozo9

Use ExcludedContexts{} to pull in definitions from all contexts:

In[2]:=2
✖
https://wolfram.com/xid/0dehyq-g6j7jw

Alternatively, attach definitions to your own symbols:

In[3]:=3
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https://wolfram.com/xid/0dehyq-8gcoop
Out[3]=3
Wolfram Research (1988), Save, Wolfram Language function, https://reference.wolfram.com/language/ref/Save.html (updated 2021).
✖
Wolfram Research (1988), Save, Wolfram Language function, https://reference.wolfram.com/language/ref/Save.html (updated 2021).

Text

Wolfram Research (1988), Save, Wolfram Language function, https://reference.wolfram.com/language/ref/Save.html (updated 2021).

✖
Wolfram Research (1988), Save, Wolfram Language function, https://reference.wolfram.com/language/ref/Save.html (updated 2021).

CMS

Wolfram Language. 1988. "Save." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2021. https://reference.wolfram.com/language/ref/Save.html.

✖
Wolfram Language. 1988. "Save." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2021. https://reference.wolfram.com/language/ref/Save.html.

APA

Wolfram Language. (1988). Save. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Save.html

✖
Wolfram Language. (1988). Save. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Save.html

BibTeX

@misc{reference.wolfram_2025_save, author="Wolfram Research", title="{Save}", year="2021", howpublished="\url{https://reference.wolfram.com/language/ref/Save.html}", note=[Accessed: 27-March-2025 ]}

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@misc{reference.wolfram_2025_save, author="Wolfram Research", title="{Save}", year="2021", howpublished="\url{https://reference.wolfram.com/language/ref/Save.html}", note=[Accessed: 27-March-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_save, organization={Wolfram Research}, title={Save}, year={2021}, url={https://reference.wolfram.com/language/ref/Save.html}, note=[Accessed: 27-March-2025 ]}

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@online{reference.wolfram_2025_save, organization={Wolfram Research}, title={Save}, year={2021}, url={https://reference.wolfram.com/language/ref/Save.html}, note=[Accessed: 27-March-2025 ]}