Caution: This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

Keywords - H


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h (file extension)
· Filename extensions ·

half-duplex
· Current Operation Rate ·

hard disks
· Hard disks ·
backing up
· Backing up physical hard disks ·
filesystems
· /fs ·
mounting
· /dev ·

hardware
clock, UTC or local time
· /etc/system/sysinit · Troubleshooting ·
cursor
· Changing video modes in Photon ·
detecting
· /etc · /sbin · Device enumeration · Introduction · Multiport serial adapters ·
flow control
· General serial adapters ·
interrupts
· Hardware Interrupt ·
supported
· Introduction · Technical Support ·

hd
· UNIX ·

head branch
· Branching ·

help
documentation, online
· Getting help with the Helpviewer · Technical Support ·
keyword index
· Searching for a topic or keyword ·
searching
· Searching for a topic or keyword ·
technical support
· Technical Support ·
usage messages
· Displaying online usage messages ·

help (directory)
· /usr ·

help (DOS command)
· DOS commands and their Neutrino equivalents ·

Helpviewer
· Filename extensions · Getting help with the Helpviewer ·
adding documentation
· Troubleshooting ·
search database, generating
· /etc/system/sysinit ·
table of contents files
· Filename extensions ·

Hewlett-Packard printers
· Setting up spooler ·

HID (Human-Interface Device)
· Mice and keyboards ·

hidden files
· Pathnames that begin with a dot · Troubleshooting ·
wildcard characters and
· Filename generation ·

hidview
· Mice and keyboards ·

hogs
· Getting the system's status · Improving performance ·

HOME (environment variable)
· Customizing your home · MS-DOS local command-interpreter variables · What happens when you log in? ·

Home (key)
· The keyboard at a glance ·

home directory
· /etc/passwd · /home · Adding users · Customizing your home · Directories -- tilde expansion · Managing other accounts · User accounts vs user IDs: login, lookup, and permissions · What does a user account do? · What happens when you log in? ·
root
· /root ·

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

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

Host Signal Processor modems
See HSP modems

host_cfg directory
· /etc/rc.d/rc.sysinit · Host-specific enumerators · rc.local ·

HOSTNAME
· /etc/profile · /etc/system/sysinit · Configuration strings · MS-DOS local command-interpreter variables ·

hostname
· Configuration strings · Is Qnet running? · Is the hostname unique? ·

HOSTNAME file
· /etc/system/sysinit ·

hosts
connections
checking
· How do I make sure I'm connected to other hosts? ·
IP addresses
mapping
· How do I map hostnames to IP addresses? ·
names
must be unique
· Is the hostname unique? ·
setting
· /etc/system/sysinit ·
valid characters
· /etc/system/sysinit ·
TCP/IP
· Hosts and gateways ·

hosts (hostname database file)
· /etc · How do I map hostnames to IP addresses? · Name servers ·

hosts.equiv
· Access control · Running the Internet daemons ·

hosts.lpd
· Access control ·

hotkeys
· Hotkeys and shortcuts ·

HSP (Host Signal Processor) modems
· Troubleshooting modems ·

HTML
dynamic
· Data server method · Dynamic HTML · Setting Up an Embedded Web Server · SSI method ·
file extensions
· Filename extensions ·
viewing
· Getting help with the Helpviewer · Surfing the web ·

HTTP
· Setting Up an Embedded Web Server ·

HTTP_ROOT_DOC
· Where should you put the files? ·

HTTPD_ROOT_DIR
· Where should you put the files? ·

HTTPD_SCRIPTALIAS
· CGI method ·

hubs, USB
· USB devices ·

Human-Interface Device
See HID

HyperText Markup Language
See HTML

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