101 Linux hacks – free Linux Ebook
Go and grab your copy of the free <a href="http://feedproxy.google.com/~r/TheGeekStuff/~3/KNUpyY4YE9c/" target="_blank">ebook.
Quite nice book with small little hacks but sometimes the details are too much, specially the one on the cd command. I think there was no need for 3-4 examples of the same thing, but then nice collection and nice ebook.