GETGID(2) GETGID(2) NAME getgid, getegid - get group identity SYNOPSIS #include gid = getgid() gid_t gid; egid = getegid() gid_t egid; DESCRIPTION _G_e_t_g_i_d returns the real group ID of the current process, _g_e_t_e_g_i_d the effective group ID. The real group ID is specified at login time. The effective group ID is more transient, and determines additional access permission during execution of a ‘‘set-group-ID’’ process, and it is for such processes that _g_e_t_g_i_d is most useful. SEE ALSO getuid(2), setregid(2), setgid(3) 4.2 Berkeley Distribution January 7, 1986 GETGID(2)