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Environment variable

Index Environment variable

An environment variable is a dynamic-named value that can affect the way running processes will behave on a computer. [1]

141 relations: ANSI.SYS, Application programming interface, ASCII, AUTOEXEC.BAT, Bash (Unix shell), Batch file, BIOS, Bourne shell, C shell, C standard library, C't, Caldera (company), Calendar date, Cd (command), CLS (command), Cmd.exe, Code page, Code page 437, Code page 850, Code page 858, Collation, Command-line interface, COMMAND.COM, Computer terminal, COMSPEC, CONFIG.SYS, Copy (command), CP/M, Decimal separator, Desktop metaphor, Digital Research, Dir (command), Directory structure, Domain controller, DOS, DOS Plus, DR-DOS, Drive letter assignment, Dynamic linker, Dynamic-link library, Env, Environment Modules (software), Environment variable, ESC/P, Euro, Exec (system call), Executable, FastBack, File Control Block, File system, ..., Fork (system call), Heinz Heise, Home directory, Hostname, IBM PC DOS, IBMBIO.COM, Institute of Electrical and Electronics Engineers, Internetwork Packet Exchange, IO.SYS, ISO 8601, KornShell, LIBPATH, Library (computing), Linux, List of country calling codes, List of DOS commands, List of Unix commands, LOADHIGH, Locale (computer software), Long filename, MAC address, MacOS, Microsoft, Microsoft Windows, Move (command), MS-DOS, Multiuser DOS, Name resolution (programming languages), NetWare, Octal, Open Data-Link Interface, Operating system, OS/2, PATH (variable), PowerShell, Process (computing), Program Segment Prefix, PWB shell, Setuid, Shell (computing), Shell builtin, Shell script, Shortcut (computing), Single UNIX Specification, Special folder, Stac Electronics, Star Trek project, SYS (command), SYSTEM.INI, Take Command (command line interpreter), Take Command Console, Temporary file, Terminal emulator, Terminate and stay resident program, The Open Group, Theme (computing), Time zone, TYPE (DOS command), Underscore, Unix, Unix shell, Unix-like, User (computing), User profile, Value (computer science), Variable (computer science), Ver (command), Version 7 Unix, VT100, VT52, Windows 2000, Windows 7, Windows 95, Windows 98, Windows domain, Windows Error Reporting, Windows ME, Windows NT, Windows NT 4.0, Windows Registry, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP, Workgroup (computer networking), WoW64, X Window System, XCOPY, 4DOS, 4OS2, 8.3 filename. Expand index (91 more) »

ANSI.SYS

ANSI.SYS is a device driver in the DOS family of operating systems that provides extra console functions through ANSI escape sequences.

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Application programming interface

In computer programming, an application programming interface (API) is a set of subroutine definitions, protocols, and tools for building software.

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ASCII

ASCII, abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication.

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AUTOEXEC.BAT

AUTOEXEC.BAT is a system file that was originally on DOS-type operating systems.

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Bash (Unix shell)

Bash is a Unix shell and command language written by Brian Fox for the GNU Project as a free software replacement for the Bourne shell.

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Batch file

A batch file is a kind of script file in DOS, OS/2 and Microsoft Windows.

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BIOS

BIOS (an acronym for Basic Input/Output System and also known as the System BIOS, ROM BIOS or PC BIOS) is non-volatile firmware used to perform hardware initialization during the booting process (power-on startup), and to provide runtime services for operating systems and programs.

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Bourne shell

The Bourne shell (sh) is a shell, or command-line interpreter, for computer operating systems.

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C shell

The C shell (csh or the improved version, tcsh) is a Unix shell created by Bill Joy while he was a graduate student at University of California, Berkeley in the late 1970s.

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C standard library

The C standard library or libc is the standard library for the C programming language, as specified in the ANSI C standard.

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C't

c't – Magazin für Computertechnik (magazine for computer technology) is a German computer magazine, published by the Heinz Heise publishing house.

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Caldera (company)

Caldera was a US-based software company founded in 1994 to develop Linux- and DOS-based operating system products.

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Calendar date

A calendar date is a reference to a particular day represented within a calendar system.

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Cd (command)

The cd command, also known as chdir (change directory), is a command-line OS shell command used to change the current working directory in operating systems such as Unix, DOS, OS/2, AmigaOS (where if a bare path is given, cd is implied), Windows, and Linux.

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CLS (command)

In computing, CLS (for clear screen) is a command used by the command line interpreters COMMAND.COM and CMD.EXE on DOS, OS/2 and Microsoft Windows operating systems to clear the screen or console window of commands and any output generated by them.

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Cmd.exe

Command Prompt, also known as cmd.exe or cmd (after its executable file name), is the command-line interpreter on Windows NT, Windows CE, OS/2 and eComStation operating systems.

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Code page

In computing, a code page is a table of values that describes the character set used for encoding a particular set of characters, usually combined with a number of control characters.

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Code page 437

Code page 437 is the character set of the original IBM PC (personal computer), or DOS.

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Code page 850

Code page 850 (also known as CP 850, IBM 00850, OEM 850, DOS Latin 1) is a code page used under DOS and Psion’s EPOC16 operating systems in Western Europe.

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Code page 858

Code page 858 (also known as CP 858, IBM 00858, OEM 858) is a code page used under DOS to write Western European languages.

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Collation

Collation is the assembly of written information into a standard order.

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Command-line interface

A command-line interface or command language interpreter (CLI), also known as command-line user interface, console user interface and character user interface (CUI), is a means of interacting with a computer program where the user (or client) issues commands to the program in the form of successive lines of text (command lines).

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COMMAND.COM

COMMAND.COM is the default command-line interpreter for DOS, Windows 95, Windows 98 and Windows ME.

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Computer terminal

A computer terminal is an electronic or electromechanical hardware device that is used for entering data into, and displaying or printing data from, a computer or a computing system.

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COMSPEC

COMSPEC or ComSpec is one of the environment variables used in DOS, OS/2 and Windows, which normally points to the command line interpreter, which is by default COMMAND.COM in DOS or CMD.EXE in OS/2 and Windows NT.

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CONFIG.SYS

CONFIG.SYS is the primary configuration file for the DOS and OS/2 operating systems.

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Copy (command)

In computing, copy is a command in RT-11, RSX-11, OpenVMS, DOS, OS/2 and Microsoft Windows operating systems.

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CP/M

CP/M, originally standing for Control Program/Monitor and later Control Program for Microcomputers, is a mass-market operating system created for Intel 8080/85-based microcomputers by Gary Kildall of Digital Research, Inc.

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Decimal separator

A decimal separator is a symbol used to separate the integer part from the fractional part of a number written in decimal form.

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Desktop metaphor

In computing, the desktop metaphor is an interface metaphor which is a set of unifying concepts used by graphical user interfaces to help users interact more easily with the computer.

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Digital Research

Digital Research, Inc. (also known as DR or DRI) was a company created by Gary Kildall to market and develop his CP/M operating system and related 8-bit, 16-bit and 32-bit systems like MP/M, Concurrent DOS, Multiuser DOS, DOS Plus, DR DOS and GEM.

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Dir (command)

In computing, dir (directory) is a command used for file and directory listing, specifically in the command line interface (CLI) of the operating systems CP/M, DOS, OS/2, Singularity, Microsoft Windows and in the DCL command line interface used on VMS, RT-11 and RSX-11.

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Directory structure

In computing, a directory structure is the way an operating system's file system and its files are displayed to the user.

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Domain controller

On Microsoft Servers, a domain controller (DC) is a server computer that responds to security authentication requests (logging in, checking permissions, etc.) within a Windows domain.

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DOS

DOS is a family of disk operating systems.

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DOS Plus

DOS Plus (erroneously also known as DOS+) was the first operating system developed by Digital Research's OEM Support Group in Newbury, Berkshire, UK, first released in 1985.

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DR-DOS

DR-DOS (DR DOS, without hyphen up to and including version 6.0) is an operating system of the DOS family, written for IBM PC-compatible personal computers.

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Drive letter assignment

In computer data storage, drive letter assignment is the process of assigning alphabetical identifiers to volumes.

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Dynamic linker

In computing, a dynamic linker is the part of an operating system that loads and links the shared libraries needed by an executable when it is executed (at "run time"), by copying the content of libraries from persistent storage to RAM, and filling jump tables and relocating pointers.

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Dynamic-link library

Dynamic-link library (or DLL) is Microsoft's implementation of the shared library concept in the Microsoft Windows and OS/2 operating systems.

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Env

env is a shell command for Unix and Unix-like operating systems.

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Environment Modules (software)

The Environment Modules system is a tool to help users manage their Unix or Linux shell environment, by allowing groups of related environment-variable settings to be made or removed dynamically.

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Environment variable

An environment variable is a dynamic-named value that can affect the way running processes will behave on a computer.

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ESC/P

ESC/P, short for Epson Standard Code for Printers and sometimes styled Escape/P, is a printer control language developed by Epson to control computer printers.

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Euro

The euro (sign: €; code: EUR) is the official currency of the European Union.

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Exec (system call)

In computing, exec is a functionality of an operating system that runs an executable file in the context of an already existing process, replacing the previous executable.

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Executable

In computing, executable code or an executable file or executable program, sometimes simply referred to as an executable or binary, causes a computer "to perform indicated tasks according to encoded instructions," as opposed to a data file that must be parsed by a program to be meaningful.

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FastBack

FastBack is a software application developed in the late 1980s and early 1990s for backing up IBM PC and Macintosh computers.

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File Control Block

A File Control Block (FCB) is a file system structure in which the state of an open file is maintained.

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File system

In computing, a file system or filesystem controls how data is stored and retrieved.

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Fork (system call)

In computing, particularly in the context of the Unix operating system and its workalikes, fork is an operation whereby a process creates a copy of itself.

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Heinz Heise

Heinz Heise is a publishing house based in Hanover, Germany.

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Home directory

A home directory is a file system directory on a multi-user operating system containing files for a given user of the system.

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Hostname

In computer networking, a hostname (archaically nodename) is a label that is assigned to a device connected to a computer network and that is used to identify the device in various forms of electronic communication, such as the World Wide Web.

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IBM PC DOS

IBM PC DOS (an acronym for IBM personal computer disk operating system) is a discontinued operating system for the IBM Personal Computer, manufactured and sold by IBM from the early 1980s into the 2000s.

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IBMBIO.COM

IBMBIO.COM is a system file in many DOS operating systems.

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Institute of Electrical and Electronics Engineers

The Institute of Electrical and Electronics Engineers (IEEE) is a professional association with its corporate office in New York City and its operations center in Piscataway, New Jersey.

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Internetwork Packet Exchange

Internetwork Packet Exchange (IPX) is the network layer protocol in the IPX/SPX protocol suite.

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IO.SYS

IO.SYS is an essential part of MS-DOS and Windows 9x.

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ISO 8601

ISO 8601 Data elements and interchange formats – Information interchange – Representation of dates and times is an international standard covering the exchange of date- and time-related data.

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KornShell

KornShell (ksh) is a Unix shell which was developed by David Korn at Bell Labs in the early 1980s and announced at USENIX on July 14, 1983.

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LIBPATH

LIBPATH is a system variable on a few computer operating systems, that has a meaning in the context of the runtime linking process, where it influences the search order for shared libraries at alternate locations.

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Library (computing)

In computer science, a library is a collection of non-volatile resources used by computer programs, often for software development.

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Linux

Linux is a family of free and open-source software operating systems built around the Linux kernel.

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List of country calling codes

Country calling codes or country dial in codes are telephone dialing prefixes for the member countries or regions of the International Telecommunication Union (ITU).

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List of DOS commands

This article presents a list of commands used by DOS operating systems, especially as used on x86-based IBM PC compatibles (PCs).

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List of Unix commands

This is a list of Unix commands as specified by IEEE Std 1003.1-2008, which is part of the Single UNIX Specification (SUS).

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LOADHIGH

LOADHIGH (abbreviated 'LH') is an internal DOS command that is used to load a program into the upper memory area (UMA) instead of conventional memory.

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Locale (computer software)

In computing, a locale is a set of parameters that defines the user's language, region and any special variant preferences that the user wants to see in their user interface.

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Long filename

Long filename (LFN) support is Microsoft's backward compatible extension of the 8.3 filename (short filename) naming scheme used in DOS.

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MAC address

A media access control address (MAC address) of a device is a unique identifier assigned to a network interface controller (NIC) for communications at the data link layer of a network segment.

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MacOS

macOS (previously and later) is a series of graphical operating systems developed and marketed by Apple Inc. since 2001.

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Microsoft

Microsoft Corporation (abbreviated as MS) is an American multinational technology company with headquarters in Redmond, Washington.

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Microsoft Windows

Microsoft Windows is a group of several graphical operating system families, all of which are developed, marketed, and sold by Microsoft.

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Move (command)

In computing, move is a command in various DOS, OS/2 and Microsoft Windows command line interpreters (shells) such as COMMAND.COM, cmd.exe, 4DOS/4NT and Windows PowerShell.

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MS-DOS

MS-DOS (acronym for Microsoft Disk Operating System) is an operating system for x86-based personal computers mostly developed by Microsoft.

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Multiuser DOS

Multiuser DOS is a real-time multi-user multi-tasking operating system for IBM PC-compatible microcomputers.

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Name resolution (programming languages)

In programming languages, name resolution refers to the resolution of the tokens within program expressions to the intended program components.

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NetWare

NetWare is a discontinued computer network operating system developed by Novell, Inc. It initially used cooperative multitasking to run various services on a personal computer, using the IPX network protocol.

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Octal

The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7.

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Open Data-Link Interface

The Open Data-Link Interface (ODI), developed by Apple and Novell, serves the same function as Microsoft and 3COM's Network Driver Interface Specification (NDIS).

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Operating system

An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

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OS/2

OS/2 is a series of computer operating systems, initially created by Microsoft and IBM under the leadership of IBM software designer Ed Iacobucci.

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PATH (variable)

PATH is an environment variable on Unix-like operating systems, DOS, OS/2, and Microsoft Windows, specifying a set of directories where executable programs are located.

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PowerShell

PowerShell is a task automation and configuration management framework from Microsoft, consisting of a command-line shell and associated scripting language.

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Process (computing)

In computing, a process is an instance of a computer program that is being executed.

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Program Segment Prefix

The Program Segment Prefix (PSP) is a data structure used in DOS systems to store the state of a program.

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PWB shell

The PWB shell (also known as the Mashey shell) is an early discontinued Unix shell.

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Setuid

setuid and setgid (short for "set user ID upon execution" and "set group ID upon execution", respectively) are Unix access rights flags that allow users to run an executable with the permissions of the executable's owner or group respectively and to change behaviour in directories.

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Shell (computing)

In computing, a shell is a user interface for access to an operating system's services.

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Shell builtin

In computing, a shell builtin is a command or a function, called from a shell, that is executed directly in the shell itself, instead of an external executable program which the shell would load and execute.

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Shell script

A shell script is a computer program designed to be run by the Unix shell, a command-line interpreter.

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Shortcut (computing)

In computing, a file shortcut is a handle in a user interface that allows the user to find a file or resource located in a different directory or folder from the place where the shortcut is located.

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Single UNIX Specification

The Single UNIX Specification (SUS) is the collective name of a family of standards for computer operating systems, compliance with which is required to qualify for using the "UNIX" trademark.

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Special folder

On Microsoft Windows, a special folder is a folder which is presented to the user through an interface as an abstract concept instead of an absolute folder path.

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Stac Electronics

Stac Electronics, originally incorporated as State of the Art Consulting and later shortened to Stac, Inc., was a technology company founded in 1983.

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Star Trek project

Star Trek is the code name that was given to a secret prototype project, running a port of Mac OS 7 and its applications on Intel-compatible x86 personal computers.

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SYS (command)

SYS is a command in Microsoft BASIC used to execute a machine language program in memory.

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SYSTEM.INI

SYSTEM.INI was an initialization (INI file) used in early versions of Microsoft Windows (from 1.01 up to Me) to load device drivers and the default Windows shell (Program Manager or Windows Explorer), among other system settings.

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Take Command (command line interpreter)

Take Command was the name that JP Software used for their GUI command-line interpreters for Windows 3.1 (TC16), Windows 32-bit (TC32) and later OS/2 Presentation Manager (TCOS2).

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Take Command Console

Take Command Console (TCC), formerly known as 4DOS for Windows NT (4NT), is a command line interpreter by JP Software, designed as a substitute for the default command interpreter in Microsoft Windows, CMD.EXE.

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Temporary file

Temporary files, or foo files (.TMP), are files created to temporarily contain information while a new file is being made.

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Terminal emulator

A terminal emulator, terminal application, or term, is a program that emulates a video terminal within some other display architecture.

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Terminate and stay resident program

Regarding computers, a terminate and stay resident program (commonly referred to by the initialism TSR) is a computer program that uses a system call in DOS operating systems to return control of the computer to the operating system, as though the program has quit, but stays resident in computer memory so it can be reactivated by a hardware or software interrupt.

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The Open Group

The Open Group is an industry consortium that seeks to "enable the achievement of business objectives" by developing "open, vendor-neutral technology standards and certifications".

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Theme (computing)

In computing, a theme is a preset package containing graphical appearance details.

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Time zone

A time zone is a region of the globe that observes a uniform standard time for legal, commercial, and social purposes.

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TYPE (DOS command)

In computing, type is a command in various RT-11, VMS, AmigaDOS, CP/M, DOS, OS/2 and Microsoft Windows command line interpreters (shells) such as COMMAND.COM, cmd.exe, 4DOS/4NT and Windows PowerShell.

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Underscore

The symbol underscore (_), also called underline, low line or low dash, is a character that originally appeared on the typewriter and was primarily used to underline words.

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Unix

Unix (trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

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Unix shell

A Unix shell is a command-line interpreter or shell that provides a traditional Unix-like command line user interface.

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Unix-like

A Unix-like (sometimes referred to as UN*X or *nix) operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification.

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User (computing)

A user is a person who utilizes a computer or network service.

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User profile

A user profile is a visual display of personal data associated with a specific user, or a customized desktop environment.

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Value (computer science)

In computer science, a value is the representation of some entity that can be manipulated by a program.

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Variable (computer science)

In computer programming, a variable or scalar is a storage location (identified by a memory address) paired with an associated symbolic name (an identifier), which contains some known or unknown quantity of information referred to as a value.

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Ver (command)

In computing, ver is a command in various DOS, OS/2 and Microsoft Windows command line interpreters (shells) such as COMMAND.COM, cmd.exe and 4DOS/4NT.

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Version 7 Unix

Seventh Edition Unix, also called Version 7 Unix, Version 7 or just V7, was an important early release of the Unix operating system.

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VT100

The VT100 is a video terminal, introduced in August 1978 by Digital Equipment Corporation (DEC).

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VT52

The VT50 was a CRT-based computer terminal introduced by Digital Equipment Corporation (DEC) in July 1974.

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Windows 2000

Windows 2000 (codenamed NT 5.0) is an operating system for use on both client and server computers.

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Windows 7

Windows 7 (codenamed Vienna, formerly Blackcomb) is a personal computer operating system developed by Microsoft.

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Windows 95

Windows 95 (codenamed Chicago) is a consumer-oriented operating system developed by Microsoft.

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Windows 98

Windows 98 (codenamed Memphis while in development) is a graphical operating system by Microsoft.

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Windows domain

A Windows domain is a form of a computer network in which all user accounts, computers, printers and other security principals, are registered with a central database located on one or more clusters of central computers known as domain controllers.

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Windows Error Reporting

Windows Error Reporting (WER) (codenamed Watson) is a crash reporting technology introduced by Microsoft with Windows XP and included in later Windows versions and Windows Mobile 5.0 and 6.0.

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Windows ME

Windows Millennium Edition, or Windows ME (marketed with the pronunciation of the pronoun "me", commonly pronounced as an initialism, "M-E (Codenamed Millennium)", is a graphical operating system from Microsoft released to manufacturing in June 2000, and launched in September 2000.

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Windows NT

Windows NT is a family of operating systems produced by Microsoft, the first version of which was released in July 1993.

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Windows NT 4.0

Windows NT 4.0 is an operating system that is part of Microsoft's Windows NT family of operating systems.

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Windows Registry

The registry is a hierarchical database that stores low-level settings for the Microsoft Windows operating system and for applications that opt to use the registry.

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Windows Server 2003

Windows Server 2003 is a server operating system produced by Microsoft and released on April 24, 2003.

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Windows Server 2008

Windows Server 2008 is the second major release of the Windows Server family of operating systems for server computers.

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Windows Vista

Windows Vista (codenamed Longhorn) is an operating system by Microsoft for use on personal computers, including home and business desktops, laptops, tablet PCs and media center PCs.

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Windows XP

Windows XP (codenamed Whistler) is a personal computer operating system that was produced by Microsoft as part of the Windows NT family of operating systems.

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Workgroup (computer networking)

Workgroup is Microsoft's term for peer-to-peer local area network.

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WoW64

In computing on Microsoft platforms, WoW64 (Windows 32-bit on Windows 64-bit) is a subsystem of the Windows operating system capable of running 32-bit applications that is included in all 64-bit versions of Windows—including Windows XP Professional x64 Edition, IA-64 and x64 versions of Windows Server 2003, as well as 64-bit versions of Windows Vista, Windows Server 2008, Windows 7, Windows 8, Windows Server 2012, Windows 8.1 and Windows 10.

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X Window System

The X Window System (X11, or shortened to simply X) is a windowing system for bitmap displays, common on UNIX-like computer operating systems.

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XCOPY

In computing, XCOPY is a command used on PC DOS, MS-DOS, OS/2, Microsoft Windows, and related operating systems for copying multiple files or entire directory trees from one directory to another and for copying files across a network.

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4DOS

4DOS is a command line interpreter by JP Software, designed to replace the default command interpreter COMMAND.COM in DOS and Windows 95/98/SE/ME.

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4OS2

4OS2 is the OS/2 analogue of 4NT and 4DOS by JP Software, Inc.

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8.3 filename

An 8.3 filename (also called a short filename or SFN) is a filename convention used by old versions of DOS and versions of Microsoft Windows prior to Windows 95 and Windows NT 3.5.

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Redirects here:

$CLS (environment variable), % CODEPAGE%, % COLUMNS%, % COUNTRY%, % DAY%, % HOUR%, % MINUTE%, % MONTH%, % ROWS%, % SECOND%, % YEAR%, %$CLS%, %$DIR%, %$FOOTER%, %$HEADER%, %$LENGTH%, %$OFF%, %$ON%, %$PAGE%, %$SLICE%, %$WIDTH%, %/%, %AM PM%, %APPEND%, %CMDCMDLINE%, %CMDEXTVERSION%, %CMDLINE%, %COMSPEC%, %CONFIG%, %COPYCMD%, %DIRCMD%, %DRCOMSPEC%, %DRDOSCFG%, %DRSYS%, %ERRORLEVEL%, %ERRORLVL%, %FULL NAME%, %GREETING TIME%, %HOMEDIR%, %HOUR%, %HOUR24%, %INFO%, %LANG%, %LANGSPEC%, %LOGIN NAME%, %LOGINNAME%, %MDOS EXEC%, %MINUTE%, %MONTH NAME%, %MONTH%, %NDAY OF WEEK%, %NO SEP%, %NOCHAR%, %NOSOUND%, %NWDOSCFG%, %OPENDOSCFG%, %OS VERSION%, %OS%, %P STATION%, %PATH%, %PEXEC%, %PROMPT%, %RANDOM%, %SECOND%, %SHORT YEAR%, %STATION%, %SWITCHAR%, %SYSTEMROOT%, %SystemDrive%, %SystemRoot%, %TASKMGRWINDIR%, %TEMP%, %TIME%, %TMP%, %VER%, %YEAR%, %YESCHAR%, 4DOS internal variable, 4DOS variable function, 4NT internal variable, 4NT variable function, 4OS2 internal variable, 4OS2 variable function, AppData, BEGINLIBPATH, BEGINLIBPATH (environment variable), CD (pseudo-environment variable), C\WINDOWS, Caldera system information variable, C:\WINDOWS, DOS environment variable, DOS pseudo-environment variable, DOS system info variable, DOS system information variable, DR-DOS system information variable, Dynamic environment variable, Dynamic environment variable (CMD), Dynamic environment variable (COMMAND), Dynamic environment variable (COMMAND.COM), Dynamic environment variable (DOS), Dynamic environment variable (Microsoft), Dynamic environment variable (Windows), ENDLIBPATH, ENDLIBPATH (environment variable), Env var, Environment (computing), Environment segment, Environment segment (DOS), Environment segment (computing), Environment variables, Environmental variable, FBP USER, FBP USER (environment variable), GEM environment variable, Internal variable (4DOS), Internal variable (4NT), Internal variable (4OS2), Internal variable (JP Software), JP Software internal variable, JP Software variable function, LC ALL, Local environment (DOS), Local environment (computing), Local environment variable, MS-DOS environment, Master environment, Master environment (DOS), Master environment variable, Novell DOS system information variable, Novell system information variable, OS/2 environment variable, OpenDOS system information variable, PROMPT (environment variable), Pre-environment, Pre-environment variable, Printenv, Pseudo-environment variable, RETURN (DOS command), Reserved environment variable, Shell variable, System environment, System environment (DOS), System environment (computing), System info variable, System information variable, System information variable (COMMAND), System information variable (COMMAND.COM), System information variable (DOS), System information variable (computing), System variable, System variables, Unix environment variable, Unset (Unix), Variable function (4DOS), Variable function (4NT), Variable function (4OS2), Variable function (JP Software), Windows environment variable, Windows pseudo-environment variable.

References

[1] https://en.wikipedia.org/wiki/Environment_variable

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