getgid(2) System Calls Manual getgid(2) getgid, getegid - LIBRARY Standard C library (libc, -lc) #include gid_t getgid(void); gid_t getegid(void); getgid() . getegid() . These functions are always successful and never modify errno. Alpha getgid() getegid() getxgid(), GID. glibc getgid() getegid() . syscall(2). POSIX.1-2008. POSIX.1-2001, 4.3BSD. getgid() getegid() Linux 16- . Linux 2.4 getgid32() getegid32(), 32- . glibc getgid() getegid() . . getresgid(2), setgid(2), setregid(2), credentials(7) Azamat Hackimov , Dmitry Bolkhovskikh , Vladislav , Yuri Kozlov ; GNU 3 , . . , , . Linux man-pages 6.06 31 2023 . getgid(2)