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$Input

$Input
is a global variable whose value is the name of the stream from which input to Mathematica is currently being sought.
  • During the execution of <<file, $Input is set to "file".
  • During interactive input, $Input is "".
EXAMPLESCLOSE ALL
Basic Examples   (1)
During interactive input, $Input is "":
During interactive input, $Input is "":
In[1]:=
Click for copyable input
Out[1]=
New in 2
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