Help in naming the file from 001 to 100 with the same extenstion

May i know how to rename all the file with the same extension .jpg(random name) in the same folder to 001.jpg , 002.jpg and so on to 100.jpg etc

Answer 1

[Jos (10584)]

% assuming you are in the directory of choice
extension = 'jpg'
DF = dir(['*.' extension]) 
for k = 1:numel(DF)
  old_name = DF(k).name 
  new_name = sprintf('%03d.%s', k, extension)
  % movefile(old_name, new_name) % UNCOMMENT WHEN YOU ARE SURE
end

[ken ken]

sorry I don' t get it is still not working using your current code

[Jan]

EDITED, inserted a ] and replaced "number" by "numel".

I'd suggest to add the path name to avoid conflicts.

[ken ken]

I had solve it thank you

[Jos (10584)]

Thanks Jan, for the corrections! :-)

Answer 2

[Guillaume]

Option 1: Write a script in matlab, debug it to make sure that it does not result in data loss (like overwriting some files by mistake). As you don't have the confidence to write this code on your own, the debug step will have to be thorough.

Option 2: There are gazillion programs on the internet that let you do batch renaming. Personally, I'd use http://www.irfanview.com/ which also lets you do batch renaming and is a pretty decent image viewer.