Use screen when you want to manage multiple sessions in a terminal. Install it on Ubuntu sudo apt-get install screen There are a lot of options for screen. I won't go into them. I use screen most often when I shell into a remote server and want to hop i...

Check it out http://sinatra.seanbehan.com/ This assumes Apache2 and the Phusion Passenger module have already been installed. If not you can get up to speed w/ this resource http://seanbehan.com/ruby-on-rails/new-ubuntu-slice-apache-mysql-php-ruby-on-rail...

Login as the root user or as a user that can execute sudo commands. #open this file for editing... vim /etc/ssh/sshd_config Find the line that reads Port 22 Change this to an different and an available port number... Port 8000 Next reload ssh /etc/...

If you have a couple collections from the database and you want to sort it without the help of Active Record, take a look at the sort_by method on Array type. I've used this before when I have a couple of collections which are slightly different but I nee...

Here are a few snippets for cross database queries. It's important to note that you must be explicit in enumerating the columns and types you are querying. Otherwise, things will probably not work as expected. -- enable extension create extension db...