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 Operating System Unix Minimal Perl For UNIX and Linux People
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 This book has two parts, aimed at those with different types of prior experience in a Unix environment. The first part is for those with at least a Unix user’s background, and the second part is for those who additionally have a Shell programmer’s background.Part 1: Perl for UNIX and Linux users Part 1 gives those with at least user-level Unix skills—which includes even the most advanced programmers—a gentle introduction to the core elements of Minimal Perl. After reading it, you’ll be able to write custom programs to do the most common types of data-processing tasks. You’re assumed to be familiar with the most basic commands, file-management techniques, and command formats used on Unix systems. For example, you should know how to view the contents of text files, how to change the current directory without getting lost, and how to use the grep command to extract matching lines from a file. Readers with more extensive backgrounds in Shell programming can especially benefit from part 2. Part 2: Perl for UNIX and Linux Shell programmers Part 2 helps Shell programmers capitalize on their specialized knowledge to quickly acquire Perl skills that go beyond those learned in part 1. A basic understanding of Shell variables, I/O techniques, flow-control facilities, and other fundamental features of the Bourne, Korn, Bash, or POSIX shells is assumed. If you lack this more advanced knowledge, you may still benefit from this material after assimilating the lessons of part 1. But you should focus on the Perl syntax descriptions, rather than the Shell-to-Perl translation aids (which aren’t designed for your use). The same advice holds for programmers who specialize in the C shell, which is fundamentally different from the Shells emphasized in this book. Download Free ebook for Linux: Minimal Perl For UNIX and Linux People
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