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making multiple copies of a file

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Ram
Ram 2011-9-1
回答： Sam Apoola 2019-2-14
I would like to make multiple copies of a file each of which will have a different name. example: source file: A.txt copies A1.txt, A2.txt... How can I use copyfile and be able to do this? Thanks for inputs

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采纳的回答

Walter Roberson
Walter Roberson 2011-9-1
copyfile() can only create one copy at a time, so you will need a loop (whether explicit or implicit)
One of numerous possible ways:
sourcefile = 'A.txt';
numcopies = 20;
[path, basename, ext] = fileparts(sourcefile);
filepattern = fullfile(path, [basename '%d.' ext]);
destnames = cellstr(num2str((1:numcopies).', filepattern);
cellfun(@(FID) copyfile(sourcefile, FID), destnames);
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Ram
Ram 2011-9-1
I have an error that they are too namy input arguments in the use of the function cellstr. Do you know what might be causing it.
thanks
Walter Roberson
Walter Roberson 2011-9-1
Looks like I left off a close bracket:
destnames = cellstr(num2str((1:numcopies).', filepattern));

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更多回答（3 个）

Amith
Amith 2012-12-26
will this work
copyfile('output2.txt',destnames(i));
  1 个评论
Walter Roberson
Walter Roberson 2012-12-26
No, destnames here is a cell array of strings, so destnames(i) would be a 1 x 1 cellarray, rather than a string. If you used destnames{i} then that would be a string.
You would need to loop "i" over all of the output string possibilities. The cellfun() that I show is responsible for that.

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Diana Krupnik
Diana Krupnik 2019-1-28
This solution names the files by numbering them, would it be possible to instead change the names based on a table that contains string or text?
Sam Apoola
Sam Apoola 2019-2-14
This worked for me
% loop for creating 100 copies
n=100;
for i=1:n
jobname{i}= ['copy', num2str(i),'.txt'];
copyfile('original.txt',jobname{i});
end

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