Wolfram Language
BUILT-IN WOLFRAM LANGUAGE SYMBOL

PutAppend


appends expr to a file.

PutAppend[expr1,expr2,…,"filename"]
appends a sequence of expressions to a file.

DetailsDetails

  • PutAppend works the same as Put, except that it adds output to the end of the file, rather than replacing the complete contents of the file.
  • PutAppend works with cloud objects.

ExamplesExamplesopen allclose all

Basic Examples  (1)Basic Examples  (1)

Append expression values at the end of a temporary file:

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Create a directory for temporary files and change to that directory:

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Put the value of in a file:

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Update and append the new value to the file:

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The file now contains the two values:

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Append successive iterates to the file in a loop:

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In[7]:=
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Reset to the original directory:

In[8]:=
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Introduced in 1988
(1.0)
| Updated in 2014
(10.0)
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