getegid - get effective group ID of process

Syntax	#include <unistd.h> Optional #include <sys/types.h> (End) gid_t getegid(void);
Description	getegid() returns the effective group ID of the calling process.
Return val.	Effective group ID of the calling process. The function is always successful.
See also	getgid(), setgid(), sys/types.h, unistd.h. manual "POSIX Basics" [1 (Related publications)].