Prepending incremental number to files in multiple subfolders

Possible to rename (prepend incremental number to existing filename) to files across multiple subfolders? (The files that have to be thus renamed are in about 600 different subfolders.) Thank you.

Please give sime before and after examples so we are sure of what you want.

e.g. Do you want the numbers to count up in each folder, so you might have files 1, 2, 3 in one folder and 1, 2 in another? Or should each number be used on exactly one file in all folders, so you might have 1, 2, 4, 6, 7 in one folder and 3, 5, 8 in another (where files were added at different times).

1, 2, 3, 4, 5, 6, etc. across all folders/subfolders without any effect on numbering associated with subfolders. That is, if possible, I'd like to batch prepend numbers to existing filenames across all subfolders. Just need an incremental unique number on each file within the 600+ folders.

Rename files in selected sub-folders and Sequential numbering are the two options you want.

Also set the old name to * and the new name to [#] * if you want the numbers to go at the start of the filenames.

Please try on some dummy test folders first, in case I have not understood exactly what you want to do. If I have got it wrong, please give some before & after examples to clarify exactly what you want.

Leo, just wanted to let you know that I just sequentially numbered 17,000+ files in 600+ folders in minutes with Directory Opus. Did have to prepend the first part of the number in a separate rename, though, since my numbers have 8 digits and DO accommodates 6. Mahalo!

Question: I've copied this set of files multiple times before the rename, but now when I try to copy them (I use FastCopy), I get "access denied" errors and the copy fails. Any precedence for that? If so, do you know a solution? Have a deadline tomorrow and need to make a copy. Mahalo.

What happens if you copy them using Opus?