ren (command)
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In computing, ren (or rename) is a command in various DOS, OS/2 and Microsoft Windows[1] command line interpreters (shells) such as COMMAND.COM, cmd.exe, 4DOS, 4NT and Windows PowerShell. It is used to rename files and in some implementations also directories. It can also move a file to a new path, if it is on the same device. It is analogous to the Unix mv command. RT-11, RSX-11 and OpenVMS also provide the rename command which can be contracted to ren.
In Windows PowerShell, ren is a predefined command alias for the Rename-Item Cmdlet which basically serves the same purpose.[2]
Example
ren filename newname
ren *.htm *.html
Another example. This will rename a default video found in Windows 7 with a new name:
ren C:\Users\Public\Videos\"Sample Videos"\Wildlife.wmv Wildlife2.wmv
See also
References
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