Advanced Bash-Scripting Guide. Internal vs External Linux shell commands. Share this post It is our firm belief that Linux, despite its advances on the desktop side, as well as on tablets, should be taught starting with the command line.
That's because it's an operating system that borrows heavily from Unix(TM), and there was nothing more than a text interface on it at the very beginning. Studies have shown that, if applicable, one is more efficient on the command-line rather than using a graphical user interface (GUI). "If applicable" means that we're not referring at photo/video editing or some other task that requires a graphical environment. It means that when there is a task that can be solved either via the command line interface (CLI) or via GUI, the CLI way is more efficient.
You may be puzzled by this choice of words, and with good reason. Please make sure that you have a shell ready, either in a pure console environment or in a GUI, as our web pages are written with text-only friendliness in mind. . $ echo $SHELL Let's see what external commands are. Make a game on Raspberry Pi. UPDATE: Here’s the original code for PiPong In this tutorial we’re going to be remaking the classic game, Pong.
To do this, we’ll be using a Python module called Pygame. Pygame is great, because it allows the programmer to create 2D games without having to worry about things such as rendering the graphics in too much detail. The main portion of the code will be the code that makes up the game’s structure and logic. Pong is an ideal game to introduce the principles behind game development as it is fairly simple, which makes it much easier to understand what’s going on. Step 1 The first step, of course, is to start up our development environment, which is the Geany editor, and create a new Python file using the ‘with template’ option. Step 2 As usual, we’re going to add some comments to the start of our program to help out anyone (including ourselves) who might end up using it. Step 3 You’ll want to save your file inside a new folder for the project, which we’re cleverly naming PiPong.
The Elements of Computing Systems / Nisan & Schocken. Learning the shell. Why do you need to learn the command line anyway?
Well, let me tell you a story. Many years ago we had a problem where I worked. There was a shared drive on one of our file servers that kept getting full. I won't mention that this legacy operating system did not support user quotas; that's another story. But the server kept getting full and it stopped people from working. Du -s * | sort -nr > $HOME/user_space_report.txt Graphical user interfaces (GUIs) are helpful for many tasks, but they are not good for all tasks.
I once heard an author say that when you are a child you use a computer by looking at the pictures. Codecademy. Online Python Tutor - Learn programming by visualizing code execution.