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BUILT-IN MATHEMATICA SYMBOL

$Messages

$Messages
gives the list of files and pipes to which message output is sent.

The default channel for messages is standard output:

Have messages go to a temporary file and the default channel:

Generate a message:

Show the contents of the temporary file:

Clean up by resetting $Messages to its default and closing the stream:

The default channel for messages is standard output:

Out[1]=

Have messages go to a temporary file and the default channel:

Out[1]=

Out[2]=

Generate a message:

Out[3]=

Show the contents of the temporary file:

Clean up by resetting $Messages to its default and closing the stream:

Out[5]=