Monday, July 20, 2009


If you find any errors please post them here and I will correct them and send you an updated PDF. Thanks for your help.


  1. Hey Nicholas,

    I want to give some students who i teach ethical hacking at the local university a good book recommendation for basic *nix things. I recently saw you nmap book and was impressed. Amazon currently has your Command Line book at an astronomically high price. Any way i could get a review copy for the class? or a discounted rate or something?

  2. That book is out of print. The 2nd edition will be on Amazon in a week or two. Send me your address and I will send you a free review copy. grepnick!at!

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