U

Table of Contents

ualarm(2) - set the interval timer

ulimit(2) - get and set user limits

umask(2) - set and get file creation mask

umount(2) - unmount a file system

umount2(2) - unmount a file system — see umount(2)

uname(2) - get information about computer system; set node name (system name)

unlink(2) - remove directory entry; delete file

usleep(2) - suspend execution for an interval

ustat(2) - get mounted file system statistics

utime(2) - set file access and modification times

utimes(2) - set file access and modification times