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A valid file URI must therefore begin with either file:/path (no hostname), file:///path (empty hostname), or file://hostname/path. file://path (i.e. two slashes, without a hostname) is never correct, but is often used. Further slashes in path separate directory names in a hierarchical system of directories and subdirectories. In this usage ...
MS-DOS version 5 introduced the quick format option (Format /Q) which removes the disk's file table without deleting any of the data. The same version also introduced the UNFORMAT command to undo the effects of a quick format, restoring the file table and making all the files accessible again.
MS-DOS 4.0 (multitasking), OS/2, Windows, HX DOS Extender.EXE: Unknown Unknown Unknown No Unknown Unknown No Only MZ (DOS) [11] Yes LE, (W3, W4) OS/2 (2.0 and higher only), some DOS extenders.EXE: Yes by file (286 and higher only) Yes Yes No Yes Yes No No Yes LX: OS/2 (2.0 and higher only), some 32-bit DOS extenders.EXE: Yes by file ...
The HX DOS Extender also uses the PE format for native DOS 32-bit binaries, and can execute some Windows binaries in DOS, thus acting like an equivalent of Wine for DOS. Mac OS X 10.5 has the ability to load and parse PE files, although it does not maintain binary compatibility with Windows. [10] UEFI and EFI firmware use PE files as well as ...
VFAT, a variant of FAT with an extended directory format, was introduced in Windows 95 and Windows NT 3.5. It allowed mixed-case Unicode long filenames (LFNs) in addition to classic 8.3 names by using multiple 32-byte directory entry records for long filenames (in such a way that old 8.3 system software will only recognize one as the valid directory entry).
Some versions of MS-DOS COMMAND.COM support the undocumented internal TRUENAME command which can display the "true name" of a file, i.e. the fully qualified name with drive, path, and extension, which is found possibly by name only via the PATH environment variable, or through SUBST, JOIN and ASSIGN filesystem mappings.
In computing, a polyglot is a computer program or script (or other file) written in a valid form of multiple programming languages or file formats. [1] The name was coined by analogy to multilingualism.
If pushd is not provided with a path argument, in Unix it instead swaps the top two directories on the stack, which can be used to toggle between two directories. The popd command removes (or 'pops', in the stack analogy) the current path entry from the stack and returns to the path at the top of the stack as the new working directory. [4] [5]