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GETGID(2) BSD System Calls Manual GETGID(2) NAME getegid, getgid -- get group process identification SYNOPSIS #include <unistd.h> gid_t getegid(void); gid_t getgid(void); DESCRIPTION The getgid() function returns the real group ID of the calling process, getegid() returns the effective group ID of the calling process. The real group ID is specified at login time. The real group ID is the group of the user who invoked the program. As the effective group ID gives the process additional permissions during the execution of ``set-group-ID'' mode processes, getgid() is used to determine the real-user-id of the calling process. ERRORS The getgid() and getegid() functions are always successful; no return value is reserved to indicate an error. LEGACY SYNOPSIS #include <sys/types.h> #include <unistd.h> The include file <sys/types.h> is necessary. SEE ALSO getuid(2), setregid(2), setgid(3) STANDARDS Getgid() and getegid() conform to IEEE Std 1003.1-1988 (``POSIX.1''). 4.2 Berkeley Distribution June 4, 1993 4.2 Berkeley Distribution |
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