TXT in the 'C:\demo\' folder and all sub-folders:įor /R %%G in (*.LOG) do Echo REN "%%G" "%% ~dpnG.TXT" RENAME is a synonym for REN Rename files within subdirectoriesīy default REN with a wildcard will only rename the files in a single folder, to recurse down into sub folders use a FOR /R command, after first changing to the top level directory.Į.g. If you issue a wildcard rename that matches only directories then a syntax error will be thrown. REN can also be used to rename directories, but this behaviour is undocumented.Ī simple REN folderA folderB will work, but wildcard operations are not supported for directories, if you issue a wildcard rename that matches both files and directories, the file(s) will be renamed and the folders will be ignored. Instead use " MOVE /y" to rename and replace an existing file. If TargetMask matches an existing file name, the following error message appears: Duplicate file name or file not found.Characters represented by wildcard characters in TargetMask will be identical to the corresponding characters in SourceMask.You cannot specify a new or different drive or path for TargetMask - use the MOVE command instead.REN SourceMask TargetMaskīoth the SourceMask and TargetMask can contain * and/or ? wildcards.Īs described below, the behavior of these wildcards is slightly different for a source or a target mask.
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