While I've never hacked the Playstation, I've done plenty of hacking as a Linux only user. Ignore the fanbois telling you to go back to Windows. Once you've got the command line, shell scripting, and make files, theres no good reason to go back to doing things manually and using such a limited command language as DOS batch files. I wish I could be more help with PS specific stuff, but don't give up. Also, if you're finding good PS tools difficult to locate (which seems to be a problem on windows too), don't get too hung up on a particular console. The older ones are easier to learn on anyway and once you know the basics, you'll have an easier time dealing with crappy tools (or writing your own).