Don’t get me wrong I’m not savvy at all when it comes to the terminal, but here are some cool tweaks over at softpedia.com that even I can do in the terminal. I’m just posting the first tweak which is really easy and makes the finder more friendly when referring to the terminal.
* Force the Finder to display the entire path to a file or directory in the window’s title bar. *
Copy and paste this to the terminal :

defaults write com.apple.finder _FXShowPosixPathInTitle -bool YES
killall Finder

The second line just quits and re-launches the finder so you can see the result immediately. To turn this tweak off just change the “YES” on the first line to “NO” (with no quotes).