If you like me want to run Mathmatica, now available on the Raspberry Pi, but you don’t have your Pi connected to a monitor, you can try this:
/opt/Wolfram/WolframEngine/10.0/Executables/math In[1]:= Print["Hello World"] Hello World
Then of course, you can add this to your path:
export PATH=$PATH:/opt/Wolfram/WolframEngine/10.0/Executables