VI Editor

i needed to use a text editor in unix today (one of the NMR machines uses a unix interface and i wanted to add a parameter to my print view). so i went looking on the internet for a basic guide on how to use vi. i found this guide over at the university of hawaii and it is great! if you ever need to know some basics on how to navigate in vi read this! i printed out the pdf and took it with me and found it invaluable.