An introductory talk on UNIX shell programming by Ryan Tomayko presented at GoGaRuCo 2010, a regional Ruby conference in San Francisco.
Video graciously provided by Confreaks, LLC.
    The POSIX Shell And Utilities
    Hater's index to the IEEE Std 1003.1-2008 POSIX shell language and
    command reference. Never write shell without it.
  
    AWK-ward Ruby
    A look at the evolution of features through AWK, Perl, and Ruby. This was to be
    published as a companion piece to the talk in GoGaRuCo's post-conference
    wrap-up magazine.