June 2000
Beginner
704 pages
14h 55m
English
Content preview from Practical Linux
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
What Is a Shell?
This chapter, which introduces you to Linux, assumes that you've just booted Linux for the first time after installation. The shell is a program started after you log in to Linux that provides a command-line interface between you and the Linux kernel. Typed commands are interpreted by the shell and sent to the kernel, which in turn opens, closes, reads, and writes files. There are a number of shells for Linux; the default shell for most distributions, however, is called bash and is found under the /bin directory. The shell's internal commands and functions can also be used to write programs.
SEE ALSO
▸To learn how to write shell programs, see page 323.
▸To learn about how to use the shell, see page 20.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.