GETGIDSection: Linux Programmer's Manual (2)
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NAMEgetgid, getegid - get group identity
DESCRIPTIONgetgid() returns the real group ID of the calling process.
ERRORSThese functions are always successful.
CONFORMING TOPOSIX.1-2001, POSIX.1-2008, 4.3BSD.
NOTESThe 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 ALSOgetresgid(2), setgid(2), setregid(2), credentials(7)
COLOPHONThis page is part of release 4.04 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.
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