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The Windows system directory (typically C:\WINDOWS\system32) is typically the first directory in the path, followed by many (but not all) of the directories for installed software packages. Many programs do not appear in the path as they are not designed to be executed from a command window, but rather from a graphical user interface. Some ...
on Windows, the directory structure has a Windows syntax, and each file path must be separated by a semicolon (";"). This does not apply when the Classpath is defined in manifest files , where each file path must be separated by a space (" "), regardless of the operating system.
The %ComSpec% variable contains the full path to the command processor; on the Windows NT family of operating systems, this is cmd.exe, while on Windows 9x, %COMSPEC% is COMMAND.COM. %OS% The %OS% variable contains a symbolic name of the operating system family to distinguish between differing feature sets in batchjobs .
This use of slash can still be found in the command interface under Microsoft Windows. By contrast, Unix uses the hyphen-minus character ("-") as a command-line switch prefix. When directory support was added to MS-DOS in version 2.0, "/" was kept as the switch prefix character for backward compatibility. Microsoft chose the backslash character ...
The initial version of cmd.exe for Windows NT was developed by Therese Stowell. [6] Windows CE 2.11 was the first embedded Windows release to support a console and a Windows CE version of cmd.exe. [7] The ReactOS implementation of cmd.exe is derived from FreeCOM, the FreeDOS command line interpreter. [2]
Conda is an open-source, [2] cross-platform, [3] language-agnostic package manager and environment management system. It was originally developed to solve package management challenges faced by Python data scientists , and today is a popular package manager for Python and R .
Under Windows, which also supports lowercase environment variable names, the variable name is defined as ComSpec in the environment block, but as COMSPEC inside the DOS emulator NTVDM. When not present in the environment block, the command processor CMD.EXE of Windows NT sets COMSPEC to its own full path; it evaluates COMSPEC for example to ...
l – Command-line arguments are passed individually (a list) to the function. p – Uses the PATH environment variable to find the file named in the file argument to be executed. v – Command-line arguments are passed to the function as an array (vector) of pointers. path