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:

In[1]:=
Click for copyable input

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

In[2]:=
Click for copyable input

Put the value of in a file:

In[3]:=
Click for copyable input

Update and append the new value to the file:

In[4]:=
Click for copyable input

The file now contains the two values:

Append successive iterates to the file in a loop:

In[6]:=
Click for copyable input

Reset to the original directory:

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