Subscribe to this product.

    Is this your street address?

    Card

    ···· ···· ···· 4242
    Test card

    05/18

    Card

    Use a different card?

    Card

    pp paypal

    or pay with

    We do not keep any of your sensitive credit card information on file with us unless you ask us to after this purchase is complete.

    or pay with

    Please confirm your location:
    Your card will be charged .

    Thank you!

      Gumroad Library

      Download from the App Store or text yourself a link to the app

      Download from the App Store or text yourself a link to the app

      Send SMS
      Nevermind

      Dmitri Popov

      Dmitri Popov is a technical writer and an amateur photographer. He has been writing exclusively about Linux and open source software for many years, and his articles have appeared in Danish, British, US, German, and Russian magazines and websites.

      Follow for updates on what Dmitri Popov is creating.

      Explore my products:

      • Photography
      • Linux
      • Bash
      • Scripting
      • Tokyo
      • Taxi