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I am new to mathematica script and thus I don't know whether this generated error is natural or not.

When I write a command such as echo "3" | math in the terminal. The output generates 

Mathematica 10.0 for Linux x86 (32-bit)
Copyright 1988-2014 Wolfram Research, Inc.

FrontEndObject::notavail: 
   A front end is not available; certain operations require a front end.

In[1]:= 
Out[1]= 3

In[2]:=

The output is actually what I expected and seems to work fine. But I am really annoyed by the error

FrontEndObject::notavail: A front end is not available; certain operations require a front end.

Is it a normal behavior?

Sungmin
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    Related: "Details" section of message/FrontEndObject/notavail – Michael E2 Apr 24 '15 at 09:44
  • @MichaelE2 I read the detailed section before I posted this page but I could not understand well. So initializing math already requires a front end? – Sungmin Apr 24 '15 at 11:00
  • I don't think it requires it absolutely, but as the message says, some things require it. Like Dynamic. Maybe typesetting and rendering graphics. I believe the message is a warning not an error. My link was meant to be helpful (to you and anybody else), but it's not meant to be an answer to your Q. Personally, I would not by annoyed by it. I can't find the documentation to the command math. Do you have a link? Is there an initialization option you could use to turn the message Off? – Michael E2 Apr 24 '15 at 12:24
  • @MichaelE2 Actually, I appreciated your link. Thanks for that. Regarding to the second question, I could not find a way to turn off the message so far. The warning pops up already when math is initialized. – Sungmin Apr 24 '15 at 12:42

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