HP-UX Reference (11i v1 05/09) - 7 Device (Special) Files, 9 General Information, Index (vol 10)

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glossary(9) glossary(9)
host name
An ASCII string of at most 8 characters (of which only 6 are supported by all the various manufacturers’
UNIX-like operating systems) which uniquely identifies an HP-UX system on a uucp(1) network. The host
name for your system can be viewed and/or set with the hostname(1) command. Systems without a
defined host name are described as "unknown" on the uucp(1) network. Do not confuse a host name with a
node name, which is a string that uniquely identifies an HP-UX system on a Local Area Network (LAN).
Although your host and node names may be identical, they are set and used by totally different software.
See node name.
image
The current state of your computer (or your portion of the computer, on a multiuser system) during the
execution of a command. Often thought of as a "snapshot" of the state of the machine at any particular
moment during execution.
init
A system process that performs initialization, is the ancestor of every other process in the system, and is
used to start login processes.
init usually has a process ID of
1. See init(1M).
interleave factor
A number that determines the order in which sectors on a mass storage medium are accessed. It can be
optimized to make data acquisition more efficient.
inode
An inode is a structure that describes a file and is identified in the system by a file serial number. Every
file or directory has associated with it an inode. Permissions that specify who can access the file and how
are kept in a 9-bit field that is part of the inode. The inode also contains the file size, the user and group
ID of the file, the number of links, and pointers to the disk blocks where the file’s contents can be found.
Each connection between an inode and its entry in one or more directories is called a link.
inode number
See file serial number.
Internal Terminal Emulator (ITE)
The "device driver" code contained in the HP-UX kernel that is associated with the computer’s built-in key-
board and display or with a particular keyboard and display connected to the computer, depending on the
Series and Model of system processor. See system console and the System Administrator manuals sup-
plied with your system for details.
internationalization
The concept of providing software with the ability to support the native language, local customs, and
coded character set of the user.
interrupt signal
The signal sent by
SIGINT (see signal(2)). This signal generally terminates whatever program you are
running. The key which sends this signal can be redefined with ioctl(2) or stty(1) (see termio(7)). It is often
the ASCII DEL (rubout) character (the DEL key) or the BREAK key. Ctrl-
C is often used instead.
intrinsic
See system call.
I/O redirection
A mechanism provided by the HP-UX shell for changing the source of data for standard input and/or the
destination of data for standard output and standard error. See sh(1).
ITE
See Internal Terminal Emulator.
job control
Job control allows users to selectively stop (suspend) execution of processes and continue (resume) their
execution at a later time.
The user employs this facility via the interactive interface jointly supplied by the system terminal driver
and certain shells (see sh(1)). The terminal driver recognizes a user-defined "suspend character", which
HP-UX 11i Version 1: September 2005 − 10 − Hewlett-Packard Company Section 9−−11