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On DOS, OS/2, and Windows operating systems, the %PATH% variable is specified as a list of one or more directory names separated by semicolon (;) characters. [5]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.
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 .
The DOS/Windows spawn functions are inspired by Unix functions fork and exec; however, as these operating systems do not support fork, [2] the spawn function was supplied as a replacement for the fork-exec combination. However, the spawn function, although it deals adequately with the most common use cases, lacks the full power of fork-exec ...
A path (or filepath, file path, pathname, or similar) is a string of characters used to uniquely identify a location in a directory structure.It is composed by following the directory tree hierarchy in which components, separated by a delimiting character, represent each directory.
Display the current working directory physical path - without symbolic link name, if any. Example: If standing in a dir /home/symlinked, that is a symlink to /home/realdir, this would show /home/realdir pwd -L: Display the current working directory logical path - with symbolic link name, if any.
The environment variable by default points to the full path of the command line interpreter. It can also be made by a different company or be a different version. Another use of this environment variable is on a computer with no hard disk, which needs to boot from a floppy disk, is to configure a ram disk.
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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.