Render Queue on a Mac

I'm trying to do a Maya render queue on a Mac. I'm going to the Terminal and
running a script that reads as follows:

render [file address]
render [file address]

I can get the script to run but then I get an error message, which I will quote
in full:

Error: file -f -o
"Documents/maya/projects/BGRG/scenes/SC18/BGRG_Char_18.ma
Error: Unterminated string.
Error: string $sceneName =
"Documents/maya/projects/BGRG/scenes/SC18/BGRG_Char_18.ma
Error: Unterminated string.
Error: if ($checkScene=="") {
Error: "$checkScene" is an undeclared variable.

Anyone know how to fix this? Of course, I would also be happy if anyone knows of
a free or cheap app that runs a render queue. The project I'm working