joshaven

  #############################################################################
  # Class: Vash (Ruby Volatile Hash)
  # Hash that returns values only for a short time.  This is useful as a cache
  # where I/O is involved.  The primary goal of this object is to reduce I/O 
  # access and due to the nature of I/O being slower then memory, you should also
  # see a gain in quicker response times.
  #
  # For example, if Person.first found the first person from the database & cache 
  # was an instance of Vash then the following would only contact the database for
  # the first iteration:

JosephPecoraro

# Ways to execute a shell script in Ruby
# Example Script - Joseph Pecoraro

cmd = "echo 'hi'" # Sample string that can be used

# 1. Kernel#` - commonly called backticks - `cmd` 
# This is like many other languages, including bash, PHP, and Perl
#   Synchronous (blocking)
#   Returns the output of the shell command
#   Docs: http://ruby-doc.org/core/classes/Kernel.html#M001111