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How do i delete the contents of a folder?

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shru s
shru s 2017-6-11
评论： Markus 2024-1-26
could anyone tell me how its done please? I have a number of figures saved in the folder which i want to delete using Matlab. Thank you. the figures are named as figure1 , figure2 and so on. the number of figures i have in my folder changes everytime.

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采纳的回答

Image Analyst
Image Analyst 2017-6-11
编辑：Image Analyst 2017-6-11
See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F
% Specify the folder where the files live.
myFolder = 'C:\whatever';
% Check to make sure that folder actually exists. Warn user if it doesn't.
if ~isdir(myFolder)
errorMessage = sprintf('Error: The following folder does not exist:\n%s', myFolder);
uiwait(warndlg(errorMessage));
return;
end
% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile(myFolder, '*.fig'); % Change to whatever pattern you need.
theFiles = dir(filePattern);
for k = 1 : length(theFiles)
baseFileName = theFiles(k).name;
fullFileName = fullfile(myFolder, baseFileName);
fprintf(1, 'Now deleting %s\n', fullFileName);
delete(fullFileName);
end
Or use 'figure*.PNG' if you saved PNG images of your figures instead of .fig files.
  2 个评论
shru s
shru s 2017-6-11
编辑：shru s 2017-6-11
Thank you so so much! You are awesome!!
sarah zizou
sarah zizou 2019-9-24
Such a useful script, thanks a lot. I have used to delete my (.mat) files.

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更多回答（4 个）

Damiano Schirinzi
Damiano Schirinzi 2018-3-21
Another quicker solution could be to just use:
delete('PathToFolder\*')
This will delete all the files in the directory specified by PathToFolder, where PathToFolder could be either the absolute or relative path.
If you just want to delete figures with know extension of you could use:
delete('PathToFolder\*.fig')
This will delete all figures in the directory specified by PathToFolder.
Or you could use:
delete('PathToFolder\figure*')
This will delete all files with names starting with figure in the directory specified by PathToFolder.
  3 个评论
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Renan Deuter
Renan Deuter 2021-2-3
This doesn't work for me. I suggest it's a problem with the permission windows gives Matlab. Do you know where I can check this?
Jan
Jan 2021-2-4
Please explain "does not work" with any details: Do you get an error message? Does the result differ from your expectations?

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Walter Roberson
Walter Roberson 2017-6-11
编辑：Jan 2018-12-17
If you want to delete the folder itself along with everything inside it, then you can use rmdir with the 's' option.
rmdir('directory_I_dont_want', 's')
If you want the directory to be kept, then
which_dir = 'directory_to_delete_files_from';
dinfo = dir(which_dir);
dinfo([dinfo.isdir]) = []; %skip directories
filenames = fullfile(which_dir, {dinfo.name});
delete( filenames{:} )
Note: this will not delete any subdirectories or their contents: I exclude them specifically, but delete would refuse to delete them anyhow.
To be honest, what I would probably actually do is
!rm directory_to_delete_files_from/*
but I am using a Unix system and "rm" is not an MS Windows command.
  1 个评论
shru s
shru s 2017-6-11
Thank you so much for taking the time to answer my question. This is very useful. Thank you

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Ajay Kumar
Ajay Kumar 2023-11-24
编辑：Ajay Kumar 2023-11-24
I have written a simple function for clearing the contents of a folder, please check it out: cleardir. Thanks!
Pit Hoffmann
Pit Hoffmann 2020-10-9
Not sure if anyone needs to delete a folder with subfolders and contents in several of these folders. Here is a small function using rmdir() to delete the hole folder. It's very important to close all data of the folder to delete.
function removeFolderWithContent(path)
% Remove folder and its complete content.
% All data of the folder has to be closed.
%
% path -> path to folder as string
%% get folder content
content = dir(path);
for iContent = 3 : numel(content)
if ~content(iContent).isdir
%% remove files of folder
delete(sprintf('%s\\%s',path,content(iContent).name));
else
%% remove subfolder
removeFolderWithContent(sprintf('%s\\%s',path,content(iContent).name));
end
end
rmdir(path);
end
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Image Analyst
Image Analyst 2021-1-27
That would be a nice idea, if you mean if your functions are shadowed, because lots of built-in toolbox functions have multiple versions and that's ok. For example
>> which -all find

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