* Matches any 0 or more characters including. However it will match nothing without failure if at name end or if the next character is a. This wildcard is greedy - it always consumes the next character if it is not a.
The wildcards work here the same as with any other command that filters file names. The sourceMask works as a filter to determine which files are renamed. 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.
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