Regsvr32
The regsvr32 command is used to register a DLL file as a command component in the Windows Registry.Relog
The relog command is used to create new performance logs from data in existing performance logs.Rem
The rem command is used to record comments or remarks in a batch or script file.Ren
The ren command is the shorthand version of the rename command.Rename
The rename command is used to change the name of the individual file that you specify.Repair-bde
The repair-bde command is used to repair or decrypt a damaged drive that's been encrypted using BitLocker.Replace
The replace command is used to replace one or more files with one or more other files.Reset
The reset command, executed as reset session, is used to reset the session subsystem software and hardware to known initial values.Rmdir
The rmdir command is used to delete an existing and completely empty folder.Robocopy
The robocopy command is used to copy files and directories from one location to another. This command is also called Robust File Copy.
The robocopy command is superior to the more simple copy command because robocopy supports many more options.

