based on an earlier version of the Wolfram Language.
Mathematica's core language and computation capabilities can be accessed not only through its rich interactive notebook interface, but also directly through a command-line interface—allowing Mathematica to be used in large-scale batch mode, or as the world's most powerful scripting language, fully integrated into any computational environment.
MathematicaScript — run a standalone executable script
% — most recent output expression
Quit — quit the Mathematica kernel
-script — command-line argument for running a script
Environment — system environment variables
SendMail — send an expression by email
init.m — file of commands to run at initialization
$Echo — where to echo input
UsingFrontEnd — execute commands using a front end if necessary