Ask HN: Advice on advanced learning of perforce

Thanks to mainly my open source experience, my first job last year and a lot of learning on my own via excellent resources I got to a point where I really feel comfortable in git. I wouldn't say I'm a master, but I do feel like I can do whatever I have to do without having troubles with using the system in the first place.

For my new job that I started last Summer, I had to start working with perforce (at least for my work). I learned the basics of it in college, so I was quite OK with using it as a basic user. However I do like the command line and would like to avoid the Perforce GUI completely if possible. I always had the feeling that perforce was made to use to use with the GUI, but I think that's just my perspective and so I would love to be proven wrong on this.

So my question is, do you know about any excellent resources for perforce that learn you both the underlying technology of perforce (why does x work in a certain way and why is that good, etc...). Also learning about how to do them via command line rather then the GUI.

For now my only resource is the official documentation of Perforce, which I can't complain to much about to be fair. However I do hope there are other, better, resources available.

With Git for example, I learned the advanced stuff not because I knew what the commands were, but more because books like Git Pro and other resources really explain how everything works and comes together.