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To create a project in Ruby on Rails 3 with a console you have to go until the parent folder of your future project. The command line is:

rails new myProject

For example, if you are in this path:

$ C:/ror3/

And you want to create a project named site1. Write this:

To know the version of your Ruby just write on your console:

$ ruby -v

If you have always dreamed to change the classic prompt of your favorite Shell, it is time to see how to do it. Open your tcsh's config that you can find in your home, it is called .tcshrc and inside, modify the line:

set prompt='(%n@%m %h)'

by

To start gdb, we have to add the -g flag at the compilation time.
So it is easy to add it in a Makefile. We are also using the Emacs IDE for running gdb.
Note that the code below does not work because we want to see the segmentation fault with gdb.

Below, certainly the most easy example of the linked lists.

Let's see this example as a FILO, meaning First In Last Out:

Where to find the HTML body of Drupal version 7? Here the tree file until it:

/modules/system/html.tpl.php

Where to find the HTML header of Drupal version 7?

Here the breadcrumb until the file:

/modules/system/html.tpl.php

The command to change the screen resolution is xrandr, To see all size available for your screen:

$ xrandr

To choose the another one resolution just use the -s option with the resolution, for example:

$ xrandr -s 800x600

The xvf command of the tar tool allows to extract files from a file with the .tgz extension, in the current folder. Let's see an example of the xvf command: