This is documentation for Mathematica 3, which was
based on an earlier version of the Wolfram Language.
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[an error occurred while processing this directive] $Urgent

  • $Urgent gives the list of files and pipes to which urgent output from Mathematica is sent.
  • Urgent output includes input prompts, and results from ? name information requests.
  • See the Mathematica book: Section 2.13.1.