This is how I learn new stuff. I read good cheat sheets and then try to figure out how I can use it. I like this one:
:::bash { cmd1; cmd2; } > file
An easy introduction to Sed and Awk.1
An exhaustive introduction.
Sed and Awk are magical unix incantations used to bring about Ragnarök ↩︎
A nice tutorial to Vi focusing on the most useful key bindings.
I know everyone is very excited about the Steven Wittens' new 3D site layout. But look at his TermKit project. Holy smokes! That is one sweet way to reinvent the terminal. I'm not so sure about the drunk expose view of apps but http get loading right into the terminal window is pretty hot.