[Nick J]

I currently am dealing with mostly lower level languages such as C++ and Assembly, but I want to find something for quick production and greater portability. I already know the basics of Python, but I was wondering what language other people like best.
I don't need it to have an IDE, but I really only want to use a language that is completely free, as well as works with linux.
I'm kind of aiming for something above Java, especially with memory management. I want to write programs that mainly deal with OS level stuff, but are quick to create.

And assembly is actually the only low level language.

[Peter K]

I wouldn't have said that C++ was low level. Java is certainly portable and a much cleaner language than C++. PHP is great for quick hacky stuff

[ROY L]

For Linux Intel C++ compiler, Free for non-commercial use:

http://www.intel.com/cd/software/products/asmo-na/eng/219768.htm

[LabRat]

There is no "best," each has their pros & cons specific to the task requirements.

If you've done the work you mention, you know that.