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Program displays the process’s real and effective UIDs and GIDs?


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In unix, with the exception of a few special system process, processes are generated by users (root and others) who have logged onto the system.
•    During the login process the system queries the password file to obtain two identifications (ID) numbers.
•    The numbers obtained are in the third and fourth fields of the password entry for the user.
•    These are respectively , the “real user ID” (UID) and “real group ID”(GID) for the user.



Edited by Ingolme
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