Index_U

U

UDP, 112 “113, 135 “136

UHCI, 213

umask , 24, 26, 271, 307

umount , 44

undefined references, 167

Unix, relationship to Linux, 1 “2

until , 154

unzip , 27

USB, 51, 213, 231 “233, 251

user ID (UID), 68 “69

user input. See Bourne shell, user input

user time, 76

users, manipulating, 69 “70

/usr , 31 “32

/usr/local , 32, 193, 304