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Environment variable, the Glossary

Index Environment variable

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

Table of Contents

  1. 165 relations: ANSI.SYS, API, ASCII, Associative array, AUTOEXEC.BAT, Banyan VINES, Bash (Unix shell), Batch file, Batch processing, BIOS, Borland, Bourne shell, C shell, C standard library, C't, CADSTAR, Caldera (company), Calendar date, Carriage return, Cd (command), Child process, CLS (command), Cmd.exe, Code page, Code page 437, Code page 850, Collation, Command-line interface, COMMAND.COM, Computer terminal, COMSPEC, CONFIG.SYS, Copy (command), CP/M, Datalight, Design of the FAT file system, Desktop metaphor, DESQview, Development of Windows 95, Digital Research, Dir (command), Directory structure, Domain controller, DOS, DOS Plus, DR-DOS, Drive letter assignment, Dynamic linker, Dynamic-link library, Env, ... Expand index (115 more) »

  2. Environment variables

ANSI.SYS

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

See Environment variable and ANSI.SYS

API

An is a way for two or more computer programs or components to communicate with each other.

See Environment variable and API

ASCII

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

See Environment variable and ASCII

Associative array

In computer science, an associative array, map, symbol table, or dictionary is an abstract data type that stores a collection of (key, value) pairs, such that each possible key appears at most once in the collection.

See Environment variable and Associative array

AUTOEXEC.BAT

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

See Environment variable and AUTOEXEC.BAT

Banyan VINES

Banyan VINES is a discontinued network operating system developed by Banyan Systems for computers running AT&T's UNIX System V. VINES is an acronym for Virtual Integrated NEtwork Service.

See Environment variable and Banyan VINES

Bash (Unix shell)

Bash, short for Bourne-Again SHell, is a shell program and command language supported by the Free Software Foundation and first developed for the GNU Project by Brian Fox.

See Environment variable and Bash (Unix shell)

Batch file

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

See Environment variable and Batch file

Batch processing

Computerized batch processing is a method of running software programs called jobs in batches automatically.

See Environment variable and Batch processing

BIOS

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

See Environment variable and BIOS

Borland

Borland Software Corporation was a computing technology company founded in 1983 by Niels Jensen, Ole Henriksen, Mogens Glad, and Philippe Kahn.

See Environment variable and Borland

Bourne shell

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

See Environment variable and Bourne shell

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.

See Environment variable and C shell

C standard library

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

See Environment variable and C standard library

C't

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

See Environment variable and C't

CADSTAR

CADSTAR is a Windows-based electronic design automation (EDA) software tool for designing and creating schematic diagrams and printed circuit boards (PCBs).

See Environment variable and CADSTAR

Caldera (company)

Caldera, Inc.

See Environment variable and Caldera (company)

Calendar date

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

See Environment variable and Calendar date

Carriage return

A carriage return, sometimes known as a cartridge return and often shortened to CR, or return, is a control character or mechanism used to reset a device's position to the beginning of a line of text.

See Environment variable and Carriage return

Cd (command)

The command, also known as (change directory), is a command-line shell command used to change the current working directory in various operating systems. Environment variable and cd (command) are windows commands.

See Environment variable and Cd (command)

Child process

A child process in computing is a process created by another process (the parent process).

See Environment variable and Child process

CLS (command)

In computing, CLS (for clear screen) is a command used by the command-line interpreters COMMAND.COM and cmd.exe on DOS, Digital Research FlexOS, IBM OS/2, Microsoft Windows and ReactOS operating systems to clear the screen or console window of commands and any output generated by them. Environment variable and CLS (command) are windows commands.

See Environment variable and CLS (command)

Cmd.exe

Command Prompt, also known as cmd.exe or cmd, is the default command-line interpreter for the OS/2, eComStation, ArcaOS, Microsoft Windows (Windows NT family and Windows CE family), and ReactOS operating systems. Environment variable and cmd.exe are windows commands.

See Environment variable and Cmd.exe

Code page

In computing, a code page is a character encoding and as such it is a specific association of a set of printable characters and control characters with unique numbers.

See Environment variable and Code page

Code page 437

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

See Environment variable and Code page 437

Code page 850

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

See Environment variable and Code page 850

Collation

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

See Environment variable and Collation

Command-line interface

A command-line interface (CLI) is a means of interacting with a computer program by inputting lines of text called command-lines. Environment variable and command-line interface are windows commands.

See Environment variable and Command-line interface

COMMAND.COM

COMMAND.COM is the default command-line interpreter for MS-DOS, Windows 95, Windows 98 and Windows Me. Environment variable and COMMAND.COM are windows commands.

See Environment variable and COMMAND.COM

Computer terminal

A computer terminal is an electronic or electromechanical hardware device that can be used for entering data into, and transcribing data from, a computer or a computing system. Environment variable and computer terminal are operating system technology.

See Environment variable and Computer terminal

COMSPEC

or 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 in DOS, Windows 95, 98, and ME or in OS/2 and Windows NT.

See Environment variable and COMSPEC

CONFIG.SYS

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

See Environment variable and CONFIG.SYS

Copy (command)

In computing, copy is a command in various operating systems. Environment variable and copy (command) are windows commands.

See Environment variable and Copy (command)

CP/M

CP/M, originally standing for Control Program/Monitor and later Control Program for Microcomputers, is a mass-market operating system created in 1974 for Intel 8080/85-based microcomputers by Gary Kildall of Digital Research, Inc. CP/M is a disk operating system and its purpose is to organize files on a magnetic storage medium, and to load and run programs stored on a disk.

See Environment variable and CP/M

Datalight

Datalight was a privately held software company specializing in power failsafe and high performance software for preserving data integrity in embedded systems.

See Environment variable and Datalight

Design of the FAT file system

The FAT file system is a file system used on MS-DOS and Windows 9x family of operating systems.

See Environment variable and Design of the FAT file system

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.

See Environment variable and Desktop metaphor

DESQview

DESQview (DV) is a text mode multitasking operating environment developed by Quarterdeck Office Systems which enjoyed modest popularity in the late 1980s and early 1990s.

See Environment variable and DESQview

Development of Windows 95

The development of Windows 95 (codenamed Chicago) began around March 1992, just after the release of Windows 3.1.

See Environment variable and Development of Windows 95

Digital Research

Digital Research, Inc. (DR or DRI) was a privately held American software 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, FlexOS, Multiuser DOS, DOS Plus, DR DOS and GEM.

See Environment variable and Digital Research

Dir (command)

In computing, dir (directory) is a command in various computer operating systems used for computer file and directory listing. Environment variable and dir (command) are windows commands.

See Environment variable and Dir (command)

Directory structure

In computing, a directory structure is the way an operating system arranges files that are accessible to the user.

See Environment variable and Directory structure

Domain controller

A domain controller (DC) is a server that responds to security authentication requests within a computer network domain.

See Environment variable and Domain controller

DOS

DOS is a family of disk-based operating systems for IBM PC compatible computers.

See Environment variable and DOS

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.

See Environment variable and DOS Plus

DR-DOS

DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles.

See Environment variable and DR-DOS

Drive letter assignment

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

See Environment variable and Drive letter assignment

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, filling jump tables and relocating pointers.

See Environment variable and Dynamic linker

A dynamic-link library (DLL) is a shared library in the Microsoft Windows or OS/2 operating system.

See Environment variable and Dynamic-link library

Env

env is a shell command for Unix and Unix-like operating systems. Environment variable and Env are environment variables.

See Environment variable and Env

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.

See Environment variable and Environment Modules (software)

Environment variable

An environment variable is a user-definable value that can affect the way running processes will behave on a computer. Environment variable and environment variable are environment variables, operating system technology and windows commands.

See Environment variable and Environment variable

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.

See Environment variable and ESC/P

Escape character

In computing and telecommunication, an escape character is a character that invokes an alternative interpretation on the following characters in a character sequence.

See Environment variable and Escape character

Euro

The euro (symbol: €; currency code: EUR) is the official currency of 20 of the member states of the European Union.

See Environment variable and Euro

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.

See Environment variable and Exec (system call)

Executable

In computer science, executable code, an executable file, or an 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 interpreted (parsed) by an interpreter to be functional.

See Environment variable and Executable

FastBack

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

See Environment variable and FastBack

File Control Block

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

See Environment variable and File Control Block

File system

In computing, a file system or filesystem (often abbreviated to FS or fs) governs file organization and access.

See Environment variable and File system

Firefox

Mozilla Firefox, or simply Firefox, is a free and open source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation.

See Environment variable and Firefox

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.

See Environment variable and Fork (system call)

Heise (company)

Heise (officially Heise Gruppe) is a German media conglomerate headquartered in Hanover.

See Environment variable and Heise (company)

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.

See Environment variable and Home directory

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.

See Environment variable and Hostname

IBM PC DOS

IBM PC DOS (an acronym for IBM Personal Computer Disk Operating System),Formally known as "The IBM Personal Computer DOS" from versions 1.0 through 3.30, as reported in those versions' respective COMMAND.COM outputs also known as PC DOS or IBM DOS, is a discontinued disk operating system for the IBM Personal Computer, its successors, and IBM PC compatibles.

See Environment variable and IBM PC DOS

IBMBIO.COM

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

See Environment variable and IBMBIO.COM

Init

In Unix-based computer operating systems, init (short for initialization) is the first process started during booting of the operating system.

See Environment variable and Init

Institute of Electrical and Electronics Engineers

The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) professional association for electronics engineering, electrical engineering, and other related disciplines.

See Environment variable and Institute of Electrical and Electronics Engineers

Internetwork Packet Exchange

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

See Environment variable and Internetwork Packet Exchange

IO.SYS

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

See Environment variable and IO.SYS

ISO 8601

ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data.

See Environment variable and ISO 8601

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.

See Environment variable and KornShell

Linux

Linux is both an open-source Unix-like kernel and a generic name for a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds.

See Environment variable and Linux

List of country calling codes

Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

See Environment variable and List of country calling codes

List of DOS commands

This article presents a list of commands used by MS-DOS compatible operating systems, especially as used on IBM PC compatibles.

See Environment variable and List of DOS commands

List of POSIX commands

This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS).

See Environment variable and List of POSIX commands

LOADHIGH

In computing, (abbreviated) is an internal DOS command in COMMAND.COM that is used to load a program into the upper memory area (UMA) instead of conventional memory.

See Environment variable and LOADHIGH

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.

See Environment variable and Locale (computer software)

Long filename

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

See Environment variable and Long filename

Lynx (web browser)

Lynx is a customizable text-based web browser for use on cursor-addressable character cell terminals.

See Environment variable and Lynx (web browser)

MAC address

A MAC address (short for media access control address) is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment.

See Environment variable and MAC address

MacOS

macOS, originally Mac OS X, previously shortened as OS X, is an operating system developed and marketed by Apple since 2001.

See Environment variable and MacOS

Man page

A man page (short for manual page) is a form of software documentation usually found on a Unix or Unix-like operating system.

See Environment variable and Man page

Memory footprint refers to the amount of main memory that a program uses or references while running.

See Environment variable and Memory footprint

Microsoft

Microsoft Corporation is an American multinational corporation and technology company headquartered in Redmond, Washington.

See Environment variable and Microsoft

Microsoft Windows

Microsoft Windows is a product line of proprietary graphical operating systems developed and marketed by Microsoft.

See Environment variable and Microsoft Windows

Microsoft Word

Microsoft Word is a word processor developed by Microsoft.

See Environment variable and Microsoft Word

Move (command)

In computing, move is a command in various command-line interpreters (shells) such as COMMAND.COM, cmd.exe, 4DOS/4NT, and PowerShell. Environment variable and move (command) are windows commands.

See Environment variable and Move (command)

MS-DOS

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

See Environment variable and MS-DOS

MS-DOS 7

MS-DOS 7 is a real mode operating system for IBM PC compatibles.

See Environment variable and MS-DOS 7

Multiuser DOS

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

See Environment variable and Multiuser DOS

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.

See Environment variable and NetWare

Non-uniform memory access

Non-uniform memory access (NUMA) is a computer memory design used in multiprocessing, where the memory access time depends on the memory location relative to the processor.

See Environment variable and Non-uniform memory access

Null character

The null character (also null terminator) is a control character with the value zero.

See Environment variable and Null character

O'Reilly Media, Inc. (formerly O'Reilly & Associates) is an American learning company established by Tim O'Reilly provides technical and professional skills development courses via an online learning platform.

See Environment variable and O'Reilly Media

Octal

Octal (base 8) is a numeral system with eight as the base.

See Environment variable and Octal

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).

See Environment variable and Open Data-Link Interface

Operating system

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

See Environment variable and Operating system

OS/2

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

See Environment variable and OS/2

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. Environment variable and PATH (variable) are environment variables.

See Environment variable and PATH (variable)

Personal NetWare

NetWare Lite and Personal NetWare are a series of discontinued peer-to-peer local area networks developed by Novell for DOS- and Windows-based personal computers aimed at personal users and small businesses in the 1990s.

See Environment variable and Personal NetWare

PowerShell

PowerShell is a task automation and configuration management program from Microsoft, consisting of a command-line shell and the associated scripting language. Environment variable and PowerShell are windows commands.

See Environment variable and PowerShell

Process (computing)

In computing, a process is the instance of a computer program that is being executed by one or many threads. Environment variable and process (computing) are operating system technology.

See Environment variable and Process (computing)

Program Segment Prefix

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

See Environment variable and Program Segment Prefix

PWB shell

The PWB shell (also known as the Mashey shell) was a Unix shell.

See Environment variable and PWB shell

Relocation (computing)

Relocation is the process of assigning load addresses for position-dependent code and data of a program and adjusting the code and data to reflect the assigned addresses.

See Environment variable and Relocation (computing)

Runtime system

In computer programming, a runtime system or runtime environment is a sub-system that exists both in the computer where a program is created, as well as in the computers where the program is intended to be run.

See Environment variable and Runtime system

Setuid

The Unix and Linux access rights flags setuid and setgid (short for set user identity and set group identity) allow users to run an executable with the file system permissions of the executable's owner or group respectively and to change behaviour in directories.

See Environment variable and Setuid

A shared library or shared object is a computer file that contains executable code designed to be used by multiple computer programs or other libraries at runtime. Environment variable and shared library are operating system technology.

See Environment variable and Shared library

Shell (computing)

In computing, a shell is a computer program that exposes an operating system's services to a human user or other programs.

See Environment variable and Shell (computing)

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. Environment variable and shell builtin are windows commands.

See Environment variable and Shell builtin

Shell script

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

See Environment variable and Shell script

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.

See Environment variable and Shortcut (computing)

Single UNIX Specification

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

See Environment variable and Single UNIX Specification

Special folder

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

See Environment variable and Special folder

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.

See Environment variable and Stac Electronics

Star Trek project

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

See Environment variable and Star Trek project

SYS (command)

In computing, sys is a command used in many operating system command-line shells and also in Microsoft BASIC. Environment variable and SYS (command) are windows commands.

See Environment variable and SYS (command)

SYSTEM.INI

SYSTEM.INI is 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.

See Environment variable and SYSTEM.INI

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.

See Environment variable and Take Command Console

Temporary file

A temporary file is a file created to store information temporarily, either for a program's intermediate use or for transfer to a permanent file when complete.

See Environment variable and Temporary file

Terminal emulator

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

See Environment variable and Terminal emulator

Terminate-and-stay-resident program

A terminate-and-stay-resident program (commonly TSR) is a computer program running under DOS that uses a system call to return control to DOS as though it has finished, but remains in computer memory so it can be reactivated later.

See Environment variable and Terminate-and-stay-resident program

The Open Group

The Open Group is a global consortium that seeks to "enable the achievement of business objectives" by developing "open, vendor-neutral technology standards and certifications." It has 900+ member organizations and provides a number of services, including strategy, management, innovation and research, standards, certification, and test development.

See Environment variable and The Open Group

Theme (computing)

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

See Environment variable and Theme (computing)

Time zone

A time zone is an area which observes a uniform standard time for legal, commercial and social purposes.

See Environment variable and Time zone

TYPE (DOS command)

In computing, is a command in various command-line interpreters (shells) such as COMMAND.COM, cmd.exe, 4DOS/4NT and Windows PowerShell used to display the contents of specified files on the computer terminal. Environment variable and TYPE (DOS command) are windows commands.

See Environment variable and TYPE (DOS command)

Underscore

An underscore or underline is a line drawn under a segment of text.

See Environment variable and Underscore

Unix

Unix (trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

See Environment variable and Unix

Unix shell

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

See Environment variable and Unix shell

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, although not necessarily conforming to or being certified to any version of the Single UNIX Specification.

See Environment variable and Unix-like

URL

A uniform resource locator (URL), colloquially known as an address on the Web, is a reference to a resource that specifies its location on a computer network and a mechanism for retrieving it.

See Environment variable and URL

User (computing)

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

See Environment variable and User (computing)

User profile

A user profile is a collection of settings and information associated with a user.

See Environment variable and User profile

Value (computer science)

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

See Environment variable and Value (computer science)

Variable (computer science)

In computer programming, a variable is an abstract storage location paired with an associated symbolic name, which contains some known or unknown quantity of data or object referred to as a value; or in simpler terms, a variable is a named container for a particular set of bits or type of data (like integer, float, string, etc...).

See Environment variable and Variable (computer science)

Ver (command)

In computing, ver (short for version) is a command in various command-line interpreters (shells) such as COMMAND.COM, cmd.exe and 4DOS/4NT. Environment variable and ver (command) are windows commands.

See Environment variable and Ver (command)

Version 7 Unix

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

See Environment variable and Version 7 Unix

ViewMAX

ViewMAX is a CUA-compliant file manager supplied with DR DOS versions 5.0 and 6.0.

See Environment variable and ViewMAX

VT100

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

See Environment variable and VT100

VT52

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

See Environment variable and VT52

Web browser

A web browser is an application for accessing websites.

See Environment variable and Web browser

Windows 2000

Windows 2000 is a major release of the Windows NT operating system developed by Microsoft and oriented towards businesses.

See Environment variable and Windows 2000

Windows 3.0

Windows 3.0 is the third major release of Microsoft Windows, launched in 1990.

See Environment variable and Windows 3.0

Windows 95

Windows 95 is a consumer-oriented operating system developed by Microsoft as part of its Windows 9x family of operating systems.

See Environment variable and Windows 95

Windows 98

Windows 98 is a consumer-oriented operating system developed by Microsoft as part of its Windows 9x family of Microsoft Windows operating systems.

See Environment variable and Windows 98

Windows 9x

Windows 9x is a generic term referring to a series of Microsoft Windows computer operating systems produced from 1995 to 2000, which were based on the Windows 95 kernel and its underlying foundation of MS-DOS, both of which were updated in subsequent versions.

See Environment variable and Windows 9x

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.

See Environment variable and Windows domain

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.

See Environment variable and Windows Error Reporting

Windows Me

Windows Me (Millennium Edition) is an operating system developed by Microsoft as part of its Windows 9x family of Microsoft Windows operating systems.

See Environment variable and Windows Me

Windows NT

Windows NT is a proprietary graphical operating system produced by Microsoft as part of its Windows product line, the first version of which, Windows NT 3.1, was released on July 27, 1993.

See Environment variable and Windows NT

Windows NT 3.1

Windows NT 3.1 is the first major release of the Windows NT operating system developed by Microsoft, released on July 27, 1993.

See Environment variable and Windows NT 3.1

Windows NT 3.5

Windows NT 3.5 is a major release of the Windows NT operating system developed by Microsoft and oriented towards businesses.

See Environment variable and Windows NT 3.5

Windows NT 3.51

Windows NT 3.51 is a major release of the Windows NT operating system developed by Microsoft and oriented towards businesses.

See Environment variable and Windows NT 3.51

Windows NT 4.0

Windows NT 4.0 is a major release of the Windows NT operating system developed by Microsoft and oriented towards businesses.

See Environment variable and Windows NT 4.0

Windows Registry

The Windows 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.

See Environment variable and Windows Registry

Windows XP

Windows XP is a major release of Microsoft's Windows NT operating system.

See Environment variable and Windows XP

Workgroup (computer networking)

In computer networking a work group is collection of computers connected on a LAN that share the common resources and responsibilities.

See Environment variable and Workgroup (computer networking)

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 on 64-bit Windows.

See Environment variable and WoW64

X Window System

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

See Environment variable and X Window System

XCOPY

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

See Environment variable and XCOPY

4DOS

4DOS is a command-line interpreter by JP Software, designed to replace the default command interpreter COMMAND.COM in Microsoft DOS and Windows.

See Environment variable and 4DOS

4OS2

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

See Environment variable and 4OS2

8.3 filename

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

See Environment variable and 8.3 filename

See also

Environment variables

References

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

Also known as $CLS (environment variable), $HOME, $LD LIBRARY PATH, % CODEPAGE%, % COLUMNS%, % COUNTRY%, % DAY%, % HOUR%, % MINUTE%, % MONTH%, % ROWS%, % SECOND%, % YEAR%, %$CLS%, %$DIR%, %$FOOTER%, %$HEADER%, %$LENGTH%, %$OFF%, %$ON%, %$PAGE%, %$SLICE%, %$WIDTH%, %/%, %ALLUSERSPROFILE%, %AM PM%, %APPDATA%, %APPEND%, %CMDCMDLINE%, %CMDEXTVERSION%, %CMDLINE%, %COMM%, %COMSPEC%, %CONFIG%, %COPYCMD%, %CommonProgramFiles%, %DIRCMD%, %DIRSIZE%, %DRCOMSPEC%, %DRDOSCFG%, %DRSYS%, %ERRORLEVEL%, %ERRORLVL%, %FTPDIR%, %FULL NAME%, %GREETING TIME%, %HOMEDIR%, %HOMEDRIVE%, %HOMEPATH%, %HOSTNAME%, %HOUR%, %HOUR24%, %HTTP DIR%, %INFO%, %LANG%, %LANGSPEC%, %LIBPATH%, %LOCALAPPDATA%, %LOGIN NAME%, %LOGINNAME%, %MDOS EXEC%, %MINUTE%, %MONTH NAME%, %MONTH%, %NDAY OF WEEK%, %NEWFILE%, %NO SEP%, %NOCHAR%, %NOSOUND%, %NWDOSCFG%, %OPENDOSCFG%, %OS VERSION%, %OS%, %P STATION%, %PATH%, %PEXEC%, %PROGRAMDATA%, %PROMPT%, %ProgramFiles%, %ProgramFiles(x86)%, %ProgramW6432%, %RANDOM%, %SECOND%, %SHORT YEAR%, %SOCKETS%, %STATION%, %SWITCHAR%, %SYSTEMROOT%, %SystemDrive%, %TASKMGRWINDIR%, %TEMP%, %TIME%, %TMP%, %TZ%, %USERDOMAIN%, %USERPROFILE%, %VER%, %YEAR%, %YESCHAR%, %windir%, .env, 4DOS internal variable, 4DOS variable function, 4NT internal variable, 4NT variable function, 4OS2 internal variable, 4OS2 variable function, ALLUSERSPROFILE, ALLUSERSPROFILE (Windows environment variable), ALLUSERSPROFILE (environment variable), APPDATA, APPDATA (Windows environment variable), APPDATA (environment variable), BEGINLIBPATH, BEGINLIBPATH (environment variable), CD (pseudo-environment variable), CMDLINE (environment variable), CONFIG (environment variable), C\WINDOWS, Caldera system information variable, CommonProgramFiles, CommonProgramFiles (Windows environment variable), CommonProgramFiles (environment 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 string, 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, LD LIBRARY PATH, LIBPATH, LIBPATH (AIX), LIBPATH (environment variable), LOCALAPPDATA, LOCALAPPDATA (Windows environment variable), LOCALAPPDATA (environment variable), 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, PROGRAMDATA, PROGRAMDATA (Windows environment variable), PROGRAMDATA (environment variable), PROMPT (environment variable), Pre-environment, Pre-environment variable, Printenv, ProgramFiles, ProgramFiles (Windows environment variable), ProgramFiles (environment variable), ProgramFiles(x86), ProgramFiles(x86) (Windows environment variable), ProgramFiles(x86) (environment variable), ProgramW6432, ProgramW6432 (Windows environment variable), ProgramW6432 (environment variable), Pseudo-environment variable, RETURN (DOS command), Reserved environment variable, Setenv, 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, SystemDrive, SystemDrive (Windows environment variable), SystemDrive (environment variable), SystemRoot, SystemRoot (Windows environment variable), SystemRoot (environment variable), USERDOMAIN, USERDOMAIN (Windows environment variable), USERDOMAIN (environment variable), USERPROFILE, USERPROFILE (Windows environment variable), USERPROFILE (environment variable), Unix environment variable, Unset (Unix), Unsetenv, Variable function (4DOS), Variable function (4NT), Variable function (4OS2), Variable function (JP Software), Windir (Windows environment variable), Windir (environment variable), Windows environment variable, Windows pseudo-environment variable.

, Environment Modules (software), Environment variable, ESC/P, Escape character, Euro, Exec (system call), Executable, FastBack, File Control Block, File system, Firefox, Fork (system call), Heise (company), Home directory, Hostname, IBM PC DOS, IBMBIO.COM, Init, Institute of Electrical and Electronics Engineers, Internetwork Packet Exchange, IO.SYS, ISO 8601, KornShell, Linux, List of country calling codes, List of DOS commands, List of POSIX commands, LOADHIGH, Locale (computer software), Long filename, Lynx (web browser), MAC address, MacOS, Man page, Memory footprint, Microsoft, Microsoft Windows, Microsoft Word, Move (command), MS-DOS, MS-DOS 7, Multiuser DOS, NetWare, Non-uniform memory access, Null character, O'Reilly Media, Octal, Open Data-Link Interface, Operating system, OS/2, PATH (variable), Personal NetWare, PowerShell, Process (computing), Program Segment Prefix, PWB shell, Relocation (computing), Runtime system, Setuid, Shared library, Shell (computing), Shell builtin, Shell script, Shortcut (computing), Single UNIX Specification, Special folder, Stac Electronics, Star Trek project, SYS (command), SYSTEM.INI, 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, URL, User (computing), User profile, Value (computer science), Variable (computer science), Ver (command), Version 7 Unix, ViewMAX, VT100, VT52, Web browser, Windows 2000, Windows 3.0, Windows 95, Windows 98, Windows 9x, Windows domain, Windows Error Reporting, Windows Me, Windows NT, Windows NT 3.1, Windows NT 3.5, Windows NT 3.51, Windows NT 4.0, Windows Registry, Windows XP, Workgroup (computer networking), WoW64, X Window System, XCOPY, 4DOS, 4OS2, 8.3 filename.