...toverrun (2) timer_gettime (2) timer_settime (2) times (2) umask (2) uname (2) unlink (2) unlinkat (2) Added in POSIX.1-2008 utime (2) utimensat (2) Added in POSIX.1-2008 utimes…...c() syslog() tmpfile() tmpnam() ttyname() ttyname_r() tzset() ungetc() ungetwc() unlink() unlinkat() [Added in POSIX.1-2008] utime() [Added in POSIX.1-2008] utimensat() [Added i…