9781156683163

Computer Configuration

  • ISBN13:

    9781156683163

  • ISBN10:

    1156683165

  • Format: Paperback
  • Copyright: 2010-08-20
  • Publisher: General Books

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Summary

Chapters: Environment Variable. Source: Wikipedia. Pages: 65. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: Environment variables are a set of dynamic named values that can affect the way running processes will behave on a computer. In all Unix and Unix-like systems, each process has its own private set of environment variables. By default, when a process is created it inherits a duplicate environment of its parent process, except for explicit changes made by the parent when it creates the child. At API level, these changes must be done between fork and exec. Alternatively, from shells such as bash, you can change environment variables for a particular command invocation by indirectly invoking it via env or using the ENVIRONMENT_VARIABLE=VALUE

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