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In it’s simplest form, the answer to the question “What is Linux?” is that it’s a computer operating system. The best thing to remember is that before you learn anything new, it pretty much always appears indistinguishable from magic, but once you start having a play, the mystery quickly falls away.
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Sadly I’m not going to go through how you accomplish this part of the equation, but feel free to check out ‘ Just Enough Raspberry Pi’ for some inspiration. Failing that you could boot into Linux from a live CD. This could mean that you stand up your own with a Raspberry Pi (My recommendation) or you could run a Linux server as a virtual machine under another operating system. Having said that, you will need access to a Linux command line somewhere. Your experience level will come second place to a desire to learn. That’s the most important criteria you will want to have when trying something new. Just by virtue of taking an interest and getting hold of a copy of this book you have demonstrated a desire to learn, to explore and to challenge yourself. So please be gentle with your emails :-). I’d like to do the same, but be warned… There’s a good chance that if you ask me a technical question I may not know the answer. I’m sure most authors try to be as accessible as possible. Please feel free to provide your thoughts on ways that I can improve things. They are living documents, open to feedback, comment, expansion, change and improvement. Like other books I have written (or are in the process of writing) they will remain a work in progress. I know that this sort of effort has been done already by others, but I think that it’s useful for people to have options :-). So I have decided to write a book about Linux commands and the philosophy behind them to help my understanding and hopefully yours as well. I have ‘played’ with computers and Linux for many years, but I always felt like something was missing. If you haven’t guessed already, this will be a journey of discovery for both of us. Congratulations on being interested enough in the process of learning about Linux to have gotten your hands on this book.
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Group parts of a search expression together ( ()).Match when the preceding character occurs 1 or more times ( +).Match when the preceding character occurs 0 or more times ( *).Match when the preceding character occurs 0 or 1 times only ( ?).Match at the beginning of a string ( ^).Match a defined single character with square brackets ( ).
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