Change name of files

Hello all.
I have lots of files in different folders that I want to rename.

In each foulder the files are named like V000_I000;V000_001 till V000_I019.
So, I want to rename this files 20 by 20 to have something like:
the 1st 20 files from V000_I000 to V000_I019, 2nd 20 files from V001_I000 to V001_I019 next from V002_I000 to V002_I019 and so on.

Any idea how to do this?

I dont know that Advanced Renamer has command-lines supporting yet? If it has that feature, you can add the commang rename each folder files then loop one folder at a time.

Reply to #2:
????

Reply to #1:

You haven't provided enough information.

Are you saying that each folder contains 20 files numbered from 0 to 19 and the set of filenames is identical in each folder? ie ALL the files are named as V000_I0xx

Are the folder names numbered sequentially in some way? If so then what you are asking for should be fairly straighforward.

Reply to #4:
"Are you saying that each folder contains 20 files numbered from 0 to 19 and the set of filenames is identical in each folder? ie ALL the files are named as V000_I0xx"
-> Yes, in each folder the files are named V000_I0xx (xx from 00 to 19). i want to grab all fine the the Advanced Renamer program and change the names at once. Like i said, 1st 20 files from V000_I000 to V000_I019, 2nd 20 files from V001_I000 to V001_I019, 3rd 20 files from V003_I000 to V001_I019 and so on.

Reply to #5:
Still not enough information! The order of the renaming will depend upon how the folders are named and you have not yet explained that.