I'm trying to learn command-line GRASS (6.4.3) using the KyngChaos binaries on a Mac (10.8.4) from Neteler and Mitasova's book, Open Source GIS: A GRASS GIS Approach (3rd ed.). I've learned from this site that some of the commands in the book have been deprecated with the introduction of the wxGUI. Is d.mon one of those commands that has been deprecated? I've found that I can still invoke a X11 graphics monitor using d.mon, but is it preferable to use the graphics monitor in the wxGUI? If so, then can I access the wxGUI's graphics monitor from a terminal session? I'm finding that the command console in the wxGUI behaves somewhat unpredictably compared to a terminal (e.g. I can't cd to change working directory).
Also, am I likely to continue running into inconsistencies between the book and the current version of the software as I work my way through the book?