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9. Process Credentials > Real User ID and Real Group ID

Real User ID and Real Group ID

The real user ID and group ID identify the user and group to which the process belongs. As part of the login process, a login shell gets its real user and group IDs from the third and fourth fields of the user’s password record in the /etc/passwd file (The Password File: /etc/passwd). When a new process is created (e.g., when the shell executes a program), it inherits these identifiers from its parent.


  

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