cowboy-cod3r

# Get today's date/time
date

# Get today's date only
date +%d-%b-%Y

cowboy-cod3r

1. On the tomcat server, do the following:
   
   a.  Open the firefwall to allow connections over the jmx port
   
   b.  Make the following directories
       mkdir -p /home/tomcat/.jvisualvm/7u6
       chown -R tomcat:tomcat /home/tomcat
   
   c.  Add the following java options to tomcat in setenv.sh
       -Dcom.sun.management.jmxremote

cowboy-cod3r

# Determine the location of a gem that has been installed
spec = Gem::Specification.find_by_name("cucumber")
gem_root = spec.gem_dir
gem_lib = File.join(gem_root, "lib")

cowboy-cod3r

# Get the class type
my_obj.class

# get the instance methods of a class
# false indicates that inherited method should not be included
my_obj.class.instance_methods(false)

# get instance variables
# In ruby, instance variables aren't tied to a class like in java.
# They only spring into existence when they are assigned.

cowboy-cod3r

# Get a list of gems
for i in $(/opt/apps/ruby/ruby/bin/gem list --no-versions);
do
  # If list the gem starts with 'ivv'
  if [[ "$i" == ivv* ]];then
  
    # Uninstall the gem
    # -x : removes executables 
    # -I : ignores dependencies
    # -a : removes all versions

cowboy-cod3r

[sean.humbarger@ISS203943 ~]$ free -m
             total       used       free     shared    buffers     cached
Mem:         16006       1434      14572          0         50        575
-/+ buffers/cache:        808      15197
Swap:         7871          0       7871

# =========================================================================

'Mem' Row 'total' Column
  * This is the total amount of RAM installed on your machine. It is the sum of the 'used' and free columns on the same row

cowboy-cod3r

class MyPackage
  
  # == Description
  # A Description of the class
  class MyClass
  
    # Accessors
    attr_accessor :attr1, :attr2
  
    # ==== Description

cowboy-cod3r

# Fork a Process
pid = fork do
  # Do stuff
  # Do more stuff
end

# Wait for the process to complete before moving on
Process.wait