NAME

       getgid, getegid - get group identity

SYNOPSIS

       #include <unistd.h>
       #include <sys/types.h>

       gid_t getgid(void);
       gid_t getegid(void);

DESCRIPTION

       getgid() returns the real group ID of the calling process.

       getegid() returns the effective group ID of the calling process.

ERRORS

       These functions are always successful.

CONFORMING TO

       POSIX.1-2001, POSIX.1-2008, 4.3BSD.

NOTES

       The  original  Linux  getgid() and getegid() system calls supported only 16-bit group IDs.  Subsequently,
       Linux 2.4 added getgid32() and getegid32(), supporting 32-bit IDs.   The  glibc  getgid()  and  getegid()
       wrapper functions transparently deal with the variations across kernel versions.

SEE ALSO

       getresgid(2), setgid(2), setregid(2), credentials(7)

COLOPHON

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       information  about  reporting  bugs,  and  the  latest  version  of  this   page,   can   be   found   at
       http://www.kernel.org/doc/man-pages/.