I’ve gotten a lot of questions lately on shells and shell programming and have been urged to write a tutorial on them. I don’t think even I can come up with such a magnificent tutorial as to explain shell programming in one sitting; therefore, I’ve decided to start the series on the basics of shell programming here today. The first thing that everyone needs to know about shell programming is the type of shell they are running. Today, then, we are going to go over the major shells and their respective positives and negatives.
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I hope you’re beginning to get excited about building a computer. It really is quite a rewarding experience. Once you’re all finished you get to sit back and realize that you have actually created something, and it just almost brings a tear to my each time I breathe life into a new machine for the first time. Ok, well maybe its not quite that extreme, but I do still enjoy it no matter how many I have built. This week I’m introducing to you the Motherboard/Processor combination and discussing a bit about how to select exactly which combination fits your needs and your budget.
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On a Linux machine, privileges are subdivided among regular users and root. For example, under my standard installation of Linux, only root can change the IP address of one of my network adapters. I think this makes sense, after all we don’t want a bunch of malicious users causing damage to our system. The problem is that this is my system, and I don’t always want to become root whenever I need to configure some aspect of my system. Sudo allows you to give individual root privileges to other users and is a necessity in streamlining your system configuration.
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