Keywords - U


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uc_tz_t
· Setting the time zone ·

UDMA (Ultra Direct Memory Access)
· EIDE · Troubleshooting for devb-eide ·

UHCI (Universal Host Controller Interface)
· USB devices ·

ulimit
· File descriptors ·

Ultra Direct Memory Access
See UDMA

umask
· /etc/profile · Default file permissions ·

umount
· Mounting and unmounting filesystems · Starting the network manager, protocols, and drivers ·

uname
· UNIX ·

undeleting a zapped file
· Recovering a zapped file ·

Unicode
filenames
· Filename rules ·
typing
· ped · Workspace (ws) ·

unions, directory
· Pathname-space mapping ·

Universal Host Controller Interface
See UHCI

Universal Serial Bus
See USB

UNIX, compared to Neutrino
· UNIX ·

unlink()
· Symbolic links ·

unnamed semaphores
limits
· Synchronization primitives ·

Unshielded Twisted Pair
See UTP

up arrow
· History: recalling commands · The keyboard at a glance ·

update (CVS command)
· Removing and restoring files ·

usage messages
· Displaying online usage messages · Filename extensions ·

usb
· USB devices ·

USB (Universal Serial Bus)
· USB devices ·
mass-storage devices
· Mass-storage devices ·

use (command)
· Displaying online usage messages · UNIX ·

use (file extension)
· Filename extensions ·

useqnet
· /etc · /etc/system/sysinit · Creating useqnet ·

USERNAME (DOS variable)
· MS-DOS local command-interpreter variables ·

users
accounts
managing
· Managing other accounts ·
reading /etc/passwd
· Account database ·
troubleshooting
· Troubleshooting ·
adding
· Adding users ·
embedded systems
· Managing User Accounts ·
IDs
· User accounts vs user IDs: login, lookup, and permissions · What does a user account do? ·
assigning
· Adding users ·
name, login
· Adding users · User accounts vs user IDs: login, lookup, and permissions · What does a user account do? ·
name, real
· /etc/passwd · Adding users ·
removing
· Removing accounts ·
root
· User accounts vs user IDs: login, lookup, and permissions ·
running programs as a specific
· Setuid and setgid ·
trusted
· Running the Internet daemons ·

usr
· /usr ·

UTC (Coordinated Universal Time)
· /etc/system/sysinit · Setting the time zone ·
hardware clock
· /etc/system/sysinit · Troubleshooting ·

UTF-8
filenames
· Filename rules ·
typing
· ped · Workspace (ws) ·

utilities
basic
· Basic commands ·
documentation
· /usr ·
DOS, equivalents for
· DOS commands and their Neutrino equivalents ·
location of
· /bin · /sbin · /usr ·
logging information about users
· Account database ·
names, completing
· Command and filename completion ·
remote execution
· Executing commands on another node or tty ·
syntax conventions
· Understanding command syntax ·
usage messages
· Displaying online usage messages ·

UTP (Unshielded Twisted Pair)
· Active Interface Type ·

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