Delete files with specific names

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Tali Leibovich
Tali Leibovich 2016-5-31
编辑： William R 2021-10-27
Hello
I have a directory with files from the same type with names like:
2016_03_24_09 -0002-0001-00058.dcm
2016_03_24_09 -0002-0001-00059.dcm
2016_03_24_09 -0002-0001-00060.dcm
etc.
Based on the last 5 figures (e.g.,*00060.dcm),
I need to delete every file that ends with a number greater than 276.
Is there a way to do it in a loop?
Thanks,
Tali
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Image Analyst
Image Analyst 2016-5-31
You need
for n = 1: size(files, 1)
and, since using ls gives you a character array instead of a cell array, you'll need
delete(strtrim(files(n,:)));
to trim off the extra whitespace. If you use dir() instead of ls(), you don't need to use strtrim().
Tali Leibovich
Tali Leibovich 2016-5-31
it's working!! Thank you so much!!!!

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Thorsten
Thorsten 2016-5-31
编辑：Thorsten 2016-5-31
You can get the filenames using
d = dir;
filenames = {d.name};
Loop through the filenames
for i = 1:numel(filenames)
fn = filenames{i};
[num, cnt] = sscanf(fn(find(fn == '-', 1, 'last')+1:end-4), '%d');
if cnt == 1 && num > 276
disp(fn)
end
end
This just displays the files to be deleted. If everything is alright, replace
disp(fn)
with
delete fn
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William R
William R 2021-10-27
编辑：William R 2021-10-27
This code will not work since
delete fn
will try to delete a file with the name "fn". So the result will be:
Warning: File 'fn' not found.
The right way to do it can be found here.
Or in this example:
delete(fn);

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