How to print TeXForm running script?

Question

I've got a simple script which runs in bash some code - I want now to get an answer in TeX Form. If I would run Mathematica code inside the interpreter, it would be easy:

Mathematica 10.0 for Linux x86 (64-bit)
Copyright 1988-2014 Wolfram Research, Inc.

In[1]:= V=(m w^2x^2)/2                                                                                                                          

           2  2
        m w  x
Out[1]= -------
           2

In[2]:= TeXForm[V]                                                                                                                              

Out[2]//TeXForm= \frac{1}{2} m w^2 x^2

But when I want to run it like a bash script ( ./code.m ), I type something like:

#!/usr/local/bin/math -script 

VO= (m w^2x^2)/2
Print[VO]
Print[TeXForm[VO]

I get:

(m*w^2*x^2)/2
TeXForm[(m*w^2*x^2)/2]

How to get proper TeXForm printing output?

Answer 1

I can reproduce your output, but I don't see how to change it using the -script option. I've always used the -run option (which I learned oh so long ago from Jens), and now I see that it is indeed different from the -script option.

I have 2 files, one is code.m that you have above (with the final closing bracket included), and another code2.m, which only has the Mathematica commands

VO= (m w^2x^2)/2
Print[VO]
Print[TeXForm[VO]]

I run this via the command math -noprompt -run "<<code2.m; Exit[]; "

Here is the difference between the two ways of running it,

And actually, it seems you don't even need to have a second file, you can just run the code.m that you have and it seems to ignore the first line as if it were a comment.