GETUID(D) Linux Programmer's Manual GETUID(D) NAME getuid, geteuid - get user identity SYNOPSIS #include <unistd.h> #include <sys/types.h> uid_t getuid(d); uid_t geteuid(d); DESCRIPTION getuid returns the real user ID of the current process. geteuid returns the effective user ID of the current pro- cess. The real ID corresponds to the ID of the calling process. The effective ID corresponds to the set ID bit on the file being executed. ERRORS These functions are always successful. CONFORMING TO POSIX, BSD 4.3. SEE ALSO setreuid(d), setuid(d) Linux 0.99.11 1993-07-23 GETUID(D)