If checked, the text specified in the Search field will only match text in the items if the text is the same case. If not checked, the Search field will be used as a text to be replaced with the text in the Replace field. The Replace field can also contain regex variables (see examples below). If checked, the Search field will be interpreted as a regular expression. The text to replace the instance(s) in the item name matched by the Search text Options Use Regular Expressions The text or regular expression to match in the item name Replace with Notice that I can undo the rename if I want to from the Windows Explorer context menu. Since all the files are uniquely named, this would have taken a long time to complete manually. In the below example, I am replacing all of the instances of 'Pampalona' with 'Pamplona' from all the image filenames in the folder. You will likely need to restart windows for the extension to be picked up by Windows Explorer.

This has the benefit of allowing the rename operation to be undone after SmartRename exits.

SmartRename then calls into the Windows Explorer file operations engine to perform the rename. While you type in the search and replace input fields, the preview area will show what the items will be renamed to. SmartRename allows simple search and replace or more advanced regular expression matching. SmartRename is a Windows Shell Extension for advanced bulk renaming using search and replace or regular expressions. Have you ever needed to modify the file names of a large number of files but didn't want to rename all of the files the same name? Wanted to do a simple search/replace on a sub-string of various file names? Wanted to perform a regular expression rename on multiple items?

Bulk rename utility portable