Hey guys, I've decided to try and write a program like MacJanitor to give to my Unix teacher (who also uses a Mac) just for fun. I'd also like to do it just for my own use to improve my programming skills. I have the general layout design finished in IB, but don't know how to run terminal commands from inside Xcode. Also, it would be nice to add a little progress bar type thing so that the user knows how far the program is from completion. Can anyone here either provide good resources/tutorials as to how to learn these specific techniques, or post replies with snippets of code that might lead me in the right direction? (Example code, etc.) Thanks a bunch!