Developer(s) | DEC, Microware, Microsoft, IBM, DR, Datalight, Novell, JP Software, ReactOS Contributors |
---|---|
Operating system | RT-11, OS/8, RSX-11, OpenVMS, DOS, OS-9, MSX-DOS, FlexOS, SISNE plus, OS/2, Windows, ReactOS, KolibriOS, SymbOS, DexOS |
Platform | Cross-platform |
Type | Command |
In computing, del
(or erase
) is a command in command-line interpreters (shells) such as COMMAND.COM
, cmd.exe
, 4DOS, NDOS, 4OS2, 4NT and Windows PowerShell. It is used to delete one or more files or directories from a file system.
The command is available for various operating systems including DOS, Microware OS-9, [1] IBM OS/2, [2] Microsoft Windows [3] and ReactOS. [4] It is analogous to the Unix rm
command and to the Stratus OpenVOS delete_file
and delete_dir
commands. [5]
DEC RT-11, [6] OS/8, [7] RSX-11, [8] and OpenVMS [9] also provide the delete
command which can be contracted to del
. AmigaDOS [10] and TSC FLEX [11] provide a delete
command as well.
The erase
command is supported by Tim Paterson's SCP 86-DOS. [12] On MS-DOS, the command is available in versions 1 and later. [13] It is also available in the open-source MS-DOS emulator DOSBox.
Datalight ROM-DOS also includes an implementation of the del
and erase
commands. [14]
While Digital Research DR-DOS supports del
and erase
as well, it also supports the shorthand form era
, which derived from CP/M. In addition to this, the DR-DOS command processor also supports delq
/eraq
. These are shorthand forms for the del
/era
/erase
command with an assumed /Q
parameter (for 'Query') given as well. [15]
THEOS/OASIS [16] and FlexOS [17] provide only the erase
command.
In PowerShell, del
and erase
are predefined command aliases for the Remove-Item
cmdlet which basically serves the same purpose.
>del filename >erase filename
In computing, dir
(directory) is a command in various computer operating systems used for computer file and directory listing. It is one of the basic commands to help navigate the file system. The command is usually implemented as an internal command in the command-line interpreter (shell). On some systems, a more graphical representation of the directory structure can be displayed using the tree
command.
The mkdir
command in the Unix, DOS, DR FlexOS, IBM OS/2, Microsoft Windows, and ReactOS operating systems is used to make a new directory. It is also available in the EFI shell and in the PHP scripting language. In DOS, OS/2, Windows and ReactOS, the command is often abbreviated to md
.
fdisk is a command-line utility for disk partitioning. It has been part of DOS, DR FlexOS, IBM OS/2, and early versions of Microsoft Windows, as well as certain ports of FreeBSD, NetBSD, OpenBSD, DragonFly BSD and macOS for compatibility reasons. Windows 2000 and its successors have replaced fdisk
with a more advanced tool called diskpart
.
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.
In computing, exit
is a command used in many operating system command-line shells and scripting languages.
In computing, tree
is a recursive directory listing command or program that produces a depth-indented listing of files. Originating in PC- and MS-DOS, it is found in Digital Research FlexOS, IBM/Toshiba 4690 OS, PTS-DOS, FreeDOS, IBM OS/2, Microsoft Windows, and ReactOS. A version for Unix and Unix-like systems is also available.
In computing, ATTRIB
is a command in Intel ISIS-II, DOS, IBM OS/2, Microsoft Windows and ReactOS that allows the user to change various characteristics, or "attributes" of a computer file or directory. The command is also available in the EFI shell.
In computing, move
is a command in various command-line interpreters (shells) such as COMMAND.COM
, cmd.exe
, 4DOS/4NT, and PowerShell. It is used to move one or more files or directories from one place to another. The original file is deleted, and the new file may have the same or a different name. The command is analogous to the Unix mv
command and to the OpenVOS move_file
and move_dir
commands.
In computing, ren
is a command in various command-line interpreters (shells) such as COMMAND.COM
, cmd.exe
, 4DOS, 4NT and Windows PowerShell. It is used to rename computer files and in some implementations also directories. It is analogous to the Unix mv
command. However, unlike mv
, ren
cannot be used to move files, as a new directory for the destination file may not be used. Alternatively, move
may be used if available. On versions of MS-DOS that do not support the move
command, the user would simply copy the file to a new destination, and then delete the original file. A notable exception to this rule is DOSBox, in which ren
may be used to move a file, since move
is not supported.
In computing, type 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. The analogous Unix command is cat.
In computing, ver
is a command in various command-line interpreters (shells) such as COMMAND.COM
, cmd.exe
and 4DOS/4NT. It prints the name and version of the operating system, the command shell, or in some implementations the version of other commands. It is roughly equivalent to the Unix command uname
.
In computing, the print
command provides single-user print spooling capability in a number of operating systems. It is roughly similar to that provided by the UNIX System V lp and BSD lpr print spooler systems.
In computing, find
is a command in the command-line interpreters (shells) of a number of operating systems. It is used to search for a specific text string in a file or files. The command sends the specified lines to the standard output device.
In some operating systems, vol
is a command within the command-line interpreters (shells) such as COMMAND.COM
and cmd.exe
. It is used to display the volume label and volume serial number of a logical drive, such as a hard disk partition or a floppy disk, if they exist.
In computing, help
is a command in various command line shells such as COMMAND.COM
, cmd.exe
, Bash, qshell, 4DOS/4NT, Windows PowerShell, Singularity shell, Python, MATLAB and GNU Octave. It provides online information about available commands and the shell environment.
In computing, copy
is a command in various operating systems. The command copies computer files from one directory to another.
In computing, format
, a command-line utility that carries out disk formatting. It is a component of various operating systems, including 86-DOS, MS-DOS, IBM PC DOS and OS/2, Microsoft Windows and ReactOS.
In computing, choice
is a command that allows for batch files to prompt the user to select one item from a set of single-character choices. It is available in a number of operating system command-line shells.
In computing, diskcopy is a command used on a number of operating systems for copying the complete contents of a diskette to another diskette.
In computing, diskcomp
is a command used for comparing the complete contents of a floppy disk to another one.