copyfile skips files?
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Hello everyone!
I want to create copies of specific files in a new directory. They are coming out of over 500 different subfolder, so I don't want to do it manually.
I have loaded and accessed data within all of them, so I know they exist. For some reason, not all files make it to the destination folder, but I'm not getting an error message. I also have plenty of space on my drive, so that can't be the problem either.
ddir = uigetdir;
AllFiles = dir(fullfile(ddir, '**', 'DT_data*mat'));
destination = 'C:\Users\XXXXX\Desktop\tempFigData';
for i = 1:length(AllFiles)
sourcefile = fullfile(AllFiles(i).folder, AllFiles(i).name);
copyfile(sourcefile, destination);
end
Does anyone have an idea what could be the problem here?
3 个评论
dpb
2020-4-18
Not w/o being able to see the directory structure and what is returned for the dir() and the resulting content of the destination subdirectory there's no way to tell
Start by including the optional return status and message at least...
[status,msg]=copyfile(sourcefile, destination);
if ~status
warning('Failed to copy %s\nError: %s\n',sourcefile,msg)
end
This continues on, you could error instead or whatever you care to do but should give at least clues why.
One thing to be careful of is proper construction of names if any files have embedded blanks in file name. I think fullfile() is smart enough, but not absolutely positive you may not need to enclose with "" or .. Worth checking.
kova
2020-4-18
dpb
2020-4-19
Do a dir() on the target destination and compare to the AllFiles original.
dDest=dir(fullfile(destination, '**', 'DT_data*mat'));
SrcDestDiff=setdiff({AllFiles.name},{dDest.name})
回答（1 个）
Image Analyst
2020-4-19
Try this:
% Get top level folder.
ddir = uigetdir(pwd);
filePattern = fullfile(ddir, '**', 'DT_data*.mat');
AllFiles = dir(filePattern);
destination = 'C:\Users\XXXXX\Desktop\tempFigData';
if ~isfolder(destination)
mkdir(destination);
end
fprintf('Found %d files.\n', length(AllFiles));
if length(AllFiles) == 0
warningMessage = sprintf('Did not find any files matching %s', filePattern);
uiwait(errordlg(warningMessage));
return;
end
for i = 1:length(AllFiles)
sourceFileName = fullfile(AllFiles(i).folder, AllFiles(i).name);
destinationFileName = fullfile(destination, AllFiles(i).name);
fprintf('Copying file %s\n to %s\n', sourceFileName, destinationFileName);
% copyfile(sourceFileName, destination);
end
Now what do you see?
7 个评论
kova
2020-4-20
Les Beckham
2020-4-20
I suspect that you have some files with duplicate names which get copied over each other.
Stephen23
2020-4-20
I second Les Beckham's comment.
dpb
2020-4-20
Les' suspection would be what the setdiff result implies...I intended to add one other piece but forgot...
cellfun(@(s) numel(unique(s),[{AllFiles.name},{dDest.name}])
if does show up that both are not same number unique files try again with
cellfun(@(s) numel(unique(lower(s)),[{AllFiles.name},{dDest.name}])
I don't know what copyfile does w/ case; Windows is case-preserving but not case-sensitive so possibly that could have happened somehow?
Image Analyst
2020-4-20
If you don't have duplicate destination filenames, then it's time to look at the return values from copyfile(). Print them both out with an fprintf() and see what they are. They should all indicate success. I'm not sure if copyfile() throws an error with red text and stops your script. It might just log the error to the status message it returns and it's up to you to check it to decide whether or not to throw an error.
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