Ren (command)

Last updated
ren / rename
Developer(s) Various open-source and commercial developers
Operating system OpenVOS, RT-11, OS/8, RSX-11, ISIS-II, iRMX 86, TOPS-20, Z80-RIO, FLEX, CDOS, OS-9, FlexOS, PC-MOS, 4690 OS, MPE/iX, THEOS/OASIS, OpenVMS, CP/M, MP/M, TRIPOS, AmigaDOS, DOS, MSX-DOS, SISNE plus, OS/2, Windows, ReactOS, SymbOS, DexOS
Platform Cross-platform
Type Command

In computing, ren (or rename) 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 (such as AmigaDOS [1] ) 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 (older than 6.00), 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.

Contents

Implementations

Description of the RENAME command of RT-11SJ displayed on a VT100. RT-11 help.jpg
Description of the RENAME command of RT-11SJ displayed on a VT100.

The command is available in the operating systems Digital Research CP/M, [2] MP/M, [3] [4] Cromemco CDOS, [5] MetaComCo TRIPOS, [6] DOS, IBM OS/2, [7] Microsoft Windows, [8] ReactOS, [9] SymbOS, and DexOS.

Multics includes a rename command to rename a directory entry. It can be contracted to rn. [10]

Stratus OpenVOS, [11] DEC RT-11, [12] OS/8, [13] RSX-11, [14] Intel ISIS-II, [15] iRMX 86, [16] TOPS-20, [17] Zilog Z80-RIO, [18] TSC FLEX, [19] Microware OS-9, [20] DR FlexOS, [21] IBM/Toshiba 4690 OS, [22] HP MPE/iX, [23] THEOS/OASIS, [24] and OpenVMS [25] also provide the rename command which in some cases can be contracted to ren.

The rename command is supported by Tim Paterson's SCP 86-DOS. [26] On MS-DOS, the command is available in versions 1 and later. [27] DR DOS 6.0 also includes an implementation of the ren and rename commands. [28]

In Windows PowerShell, ren is a predefined command alias for the Rename-Item Cmdlet which basically serves the same purpose. [29]

TSL PC-MOS includes an implementation of rename. [30] Like the rest of the operating system, it is licensed under the GPL v3. [31]

It is also available in the open source MS-DOS emulator DOSBox.

Example

>ren filename newname >ren *.htm *.html 

Another example. This will rename a default video found in Windows 7 with a new name:

>rename"C:\Users\Public\Videos\Sample Videos\Wildlife.wmv""Wildlife2.wmv"

The first parameter may contain a drive and a path, but the second parameter must contain only the new filename.

To remove certain characters of a file name in Microsoft Windows command prompt (XP & Higher) :

>rename"abcd*.txt""////*.txt"

This will remove abcd from the file name.

Notes:

  1. Same number of / as the number of initial characters to remove.
  2. Double quotes for both arguments.
  3. It doesn't remove . from file name


See also

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References

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Further reading