Change the folder names from one digit to 2 digit numbers

I have a folder 'data' full of folders which are named like this:

E:\data\foldername1\
E:\data\foldername2\
E:\data\foldername3\
...
E:\data\foldername100\
E:\data\foldername11\
...

I would like to rename the folders with one digit (foldername1- foldername9) with two digits, like that:

E:\data\foldername01\
E:\data\foldername02\
...

As I have lots of those 'data' folders I would like to automate it. I tried without success so far... Could anyone please help me?

[Azzi Abdelmalek]

If you rename E:\data\foldername1\ to E:\data\foldername10\, then what about the existing E:\data\foldername10\?

[Butterflyfish]

Sorry I meant foldername01 not 10, will edit the question

Answer 1

[Alessandro Masullo]

You can use dir, sscanf, sprintf and movefile.

Use dir to get the list of the folders.

Use scanf to get the number of the folder:

sscanf('folder39','folder%d')

ans =

      39

Use sprintf to write the new folder name

sprintf('foldername%04d',15)

ans =

foldername0015

Use movefile to rename your folder.

[Butterflyfish]

Thank you! Just running into a problem here:

NewName = sprintf(thisDirName '%02d', EndNumber)

Just because my folder names are actually all different to one another I cannot use

sprintf('foldername%04d',15)

Any suggestion?

[Butterflyfish]

Figured smth out:

NewName = sprintf('%s%02d',thisDirName(1:end-1), EndNumber2)

working now! Thanks a lot for the help