July 2019
Intermediate to advanced
458 pages
12h 12m
English
Content preview from Hands-On System Programming with Go
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Using exit codes
An exit code, or exit status, is a small integer number that is passed from a process to its parent when the process exits. It is the simplest way of notifying you of the result of the application execution. In Chapter 2, Unix OS Components, we briefly mentioned exit codes. We will now learn how to use them inside applications and how to interpret the exit codes of child processes.
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