This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)

$Linked

$Linked
is True if the Mathematica kernel is being run through MathLink.
  • $Linked is True when Mathematica is being run with a front end.
  • $Linked is typically False when Mathematica is being run with a text-based interface.
Test whether the Mathematica kernel is being run through MathLink:
$CommandLine shows that the kernel was called in MathLink mode:
Test whether the Mathematica kernel is being run through MathLink:
In[1]:=
Click for copyable input
Out[1]=
$CommandLine shows that the kernel was called in MathLink mode:
In[2]:=
Click for copyable input
Out[2]=
In[3]:=
Click for copyable input
Out[3]=
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