How to use "dir" command to get desired files in a folder?

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Mr. 206 2018-12-4

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/433759-how-to-use-dir-command-to-get-desired-files-in-a-folder

评论： Fangjun Jiang 2018-12-4

采纳的回答： Fangjun Jiang

在 MATLAB Online 中打开

I can read files inside a folder by using this piece of code..

Flame_speed_folder = '/home/ali/Test_rig'; 
Allfiles = dir(fullfile(Flame_speed_folder, '*.txt'));
allData = [];
    for k = 1:length(Allfiles)
      initialFileName = Allfiles(k).name;
      fullFileName = fullfile(Flame_speed_folder, initialFileName);
      READ=dlmread(fullFileName,'',1,0,"emptyvalue",911911911);
      allData(end+1:end+size(READ,1), :) = READ;
    end  

How ever this will read all txt files in that folder.

I have files like "ign_phi1.0_p20E05_50.txt", "ign_phi1.0_p3.75E05_37.txt", "ign_phi2.0_p3.75E05_47.txt".............. and so one and another types of file like "lfs_p1.01E05_T298_15.txt", "lfs_p1.01E05_T298_16.txt"..... and so on.

How can i read the "ign" and "lfs" files separeately using this "dir" command.

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采纳的回答

Fangjun Jiang 2018-12-4

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/433759-how-to-use-dir-command-to-get-desired-files-in-a-folder#answer_350478

dir('ign*.txt') and dir('ifs*.txt') should be able to separate them.

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Image Analyst 2018-12-4

Use fliplr() and then sort(), then fliplr() again.

Fangjun Jiang 2018-12-4

在 MATLAB Online 中打开

a=dir('ign*.txt');
b={a.name};
c=cellfun(@(x) x(end-5:end),b,'uni',false);
[d,index]=sort(c);
e=a(index);

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