handshaking --
The information that is passed between two systems or devices to allow the
two sides to establish a connection.
HBA (Host Bus Adapter) diskette --
A diskette containing device drivers for Host Bus Adapters.
header file --
(programming)
A header file is a file that usually
contains shared data declarations that are to
be copied into source files by the compiler.
Header file names conventionally end with the characters .h .
Header files are also called ``include'' files,
for the C language #include directive by which
they are made available to source files.
headers --
Information included at the top of every e-mail message.
Headers minimally identify the message sender, recipient, and the
date it was sent, and can optionally provide other information,
such as carbon-copy recipients and message priority.
help --
A program in the Desktop and in some control, accessory,
and application programs that provides explanatory text if
you need assistance or more information. It is also called
online help.
help key --
The function key that calls online help (<F1> by default).
help server mode --
``helpserver'' mode
begins when scohelp is started by asking for help from
another tool or application. scohelp operates in
``standalone'' mode when started
from a command line with the command scohelp or from the Desktop by
double clicking on the Help icon. See also
standalone mode.
here document --
A section of a shell script that is used as the standard input to
a command appearing within the script itself.
hierarchy --
A part or all of a file structure. The term ``hierarchy''
refers to both the directories of the file structure,
and the files within the structure.
highlighted --
(programming)
A visual indication that an object is in a special state.
For two-color (``monochrome'') objects, the colors are exchanged.
Multi-color objects cannot be highlighted.
history file --
A file in which the shell saves commands which are
entered interactively. You can edit the file and reissue commands
from it. See also
Korn shell
and
C shell.
home directory --
The place in the filesystem where you can keep your
personal files and subdirectories.
When you log in, you are automatically placed in your home directory.
Typically, this will be /u/loginname or
/usr/loginname, where
loginname is your login name.
The shell's shorthand for the home directory is ``~''.
home page --
The document scohelp displays when
it starts.
host --
1. Any computer on a network.
2. Any computer that supports exchange of e-mail.
See also
local host.
host name --
Sometimes called a system name or machine name.
The name of the machine on which you are configuring a mail transport agent.
To determine the local host name,
enter uname -n at your UNIX system prompt.
An example of a host name is scribe.
Some mail transport agents, like MMDF, allows host names to
contain underscore characters; this is an extension of internet standards.
To ensure interoperability with hosts that strictly conform to internet
standards, SCO recommends that you do not use the underscore character
when internetworking is a primary goal.
HTML --
Hypertext Markup Language. HTML is a subset of
SGML (Standard Generalized Markup Language) primarily
used for the creation of online hypertext documents such as those
viewed with SCOhelp. While SCOhelp can display plain ASCII
documents, if you want to display formatted text when accessed by
the help viewer, you must code your document in HTML.
hung --
When a process has been stopped abnormally, with no way to restart
that process.