Glossary

gram used to invoke utility programs. Some examples of HP-UX shells are the Bourne, Korn, Key, and C shells. Sometimes referred to as a command interpret- er. See also command interpreter.

shell command An instruction you give the system to execute a utility program or shell script. See also shell script, utility program.

shell script A file that contains commands that the system can interpret and run in a shell.

shutdown The process of taking the system from multi-user state to system administration state.

SIMM See Single In-line Memory Module.

single-ended standard SCSI An 8-bit wide SCSI bus with standard receivers and drivers, which limits total cable length to 6 meters. See also fast, differential SCSI, fast-wide SCSI, Small Computer System Interface.

Single In-line Memory Module A memory board.

slider One of the components of a scroll bar. The slider is the object that is dragged along the scroll area to cause a change.

Small Computer System Interface (SCSI) An IEEE standard for interfacing a computer to multiple, disparate high-speed peripherals such as a floppy disk or a CD-ROM, singly or in combi-

nation. See also fast, differential SCSI, fast-wide SCSI, single-ended standard SCSI.

standalone A workstation that is not part of a cluster. See also cluster.

Style Manager The HP VUE application that provides the ability to customize various aspects of your system, including colors, fonts, the keyboard, the mouse, session startup and termination behavior, and access to other worksta- tions.

subdirectory A directory that is located in, or anywhere on a path below, another directory. The directory above the subdirectory is called the parent directory. The subdirectory is also referred to as the child directory. See also parent directory .

superuser A user with permission to enter the top-level directory and make changes to files and programs that users are not allowed to change. To “become superuser” or “become root” means to let the system know that you are now assuming the role of system administrator. You can do this either by logging into the system as root, or by typing su at a command -line prompt. You must know the root password to become root.

system administrator The person responsible for system and network instal- lation, updating, maintenance, and security at your site.

system call Invocation of a kernel process by a user program.

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