从命令行运行时向类路径添加jar

Ok I know this question has been asked many many many times before, but I've googled it and looked at examples and looked at questions on SO for the past month, and I seriously cannot get this to work. I think the problem is that I want to be able to run the program from both Eclipse and the command line. I'm also using OSX and I think a lot of the examples I'm reading are for Windows/Linux.Ok I know this question has been asked many man