GNUplot does plotting. Not familiar with Origin.
Have a look at the following site and see if it looks like what you need:
http://www.duke.edu/~hpgavin/gnuplot.html
I got the above by doing a google for the terms: Origina Windows Linux Plot
Trying same will give you that and other results. Adding other key words important to what you want to do may help narrow down the search. For almost anything you want to do there's an open source package (often more than one). It just takes patience to figure it out.
Going to sourceforge.net may be of use if Google doesn't help.