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Unix in a Nutshell, 4th Edition
book

Unix in a Nutshell, 4th Edition

by Arnold Robbins
October 2005
Intermediate to advanced
908 pages
46h 42m
English
O'Reilly Media, Inc.
Content preview from Unix in a Nutshell, 4th Edition

Introduction and Terminology

Source code management systems let you store and retrieve multiple versions of a file. While originally designed for program source code, they can be used for any kind of file: source code, documentation, configuration files, and so on. Modern systems allow you to store binary files as well, such as image or audio data.

Source code management systems let you compare different versions of a file, as well as do “parallel development.” In other words, you can work on two different versions of a file at the same time, with the source code management system storing both versions. You can then merge changes from two versions into a third version. This will become more clear shortly. We’ll start by defining some terms.

Repository

A repository is where the source code management system stores its copy of your file. Usually one Unix file is used to hold all the different versions of a source file. Each source code management system uses its own format to allow it to retrieve different versions easily, and to track who made what changes, and when.

Sandbox

A sandbox is your personal, so-called “working copy” of the program or set of documents under development. You edit your private copy of the file in your own sandbox, returning changes to the source code management system when you’re satisfied with the new version.

Check in, check out

You “check out” files from the repository, edit them, and then “check them in” when you’re satisfied with your changes. Other developers ...

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Publisher Resources

ISBN: 0596100299Errata Page