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The SET command without any arguments displays all environment variables along with their values; SET " ", zero or more spaces, will include internal variables too. In CMD.EXE , it is possible to assign local variables that will not be global using the SETLOCAL command and ENDLOCAL to restore the environment.
AUTOEXEC.BAT is a system file that was originally on DOS-type operating systems.It is a plain-text batch file in the root directory of the boot device.The name of the file is an abbreviation of "automatic execution", which describes its function in automatically executing commands on system startup; the filename was coined in response to the 8.3 filename limitations of the FAT file system family.
Windows PowerShell Integrated Scripting Environment (ISE): PowerShell 2.0 includes a GUI-based PowerShell host that provides integrated debugger, syntax highlighting, tab completion and up to 8 PowerShell Unicode-enabled consoles (Runspaces) in a tabbed UI, as well as the ability to run only the selected parts in a script.
cmd.exe in Windows NT 2000, 4DOS, 4OS2, 4NT, and a number of third-party solutions allow direct entry of environment variables from the command prompt. From at least Windows 2000, the set command allows for the evaluation of strings into variables, thus providing inter alia a means of performing integer arithmetic.
The COMMAND.COM file is copied to the ram disk during boot and the COMSPEC environment variable is set to the new location on the ram disk. This way the boot disk can be removed without the need to reinsert it after a big application has been stopped.
Development started in 1991 to provide login scripting for the Microsoft LAN Manager environment. It has rich built-in functionality for easy scripting and provides access to ADSI, ADO, WMI, etc. The language can be used to display information, set environment variables, start programs, connect to network drives, read or edit the registry ...
Yes (via 4DOS.INI / NDOS.INI file, startup parameters, environment variables, SETDOS command) Yes (automatic \AUTOEXEC.BAT for primary shell and 4START.BTM / 4START.BAT as well as 4EXIT.BTM / 4EXIT.BAT for any shell, or explicitly via /P, /P:dir\filename.ext or /K startup options) Yes (via CALL command or /C and /K startup options) Yes Yes 4OS2
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. In general, each executing process or user session has its own PATH setting.