posix_setuid Set the UID of the current process &reftitle.description; boolposix_setuid intuid Set the real user ID of the current process. This is a privileged function that needs appropriate privileges (usually root) on the system to be able to perform this function. &reftitle.parameters; uid The user id. &reftitle.returnvalues; &return.success; &reftitle.examples; This example will show the current user id and then set it to a different value. ]]> &reftitle.seealso; posix_setgid posix_seteuid posix_getuid posix_geteuid