Rename files after a certain string in the file itself appears

Question

Gianluca Regina 2022-4-27

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https://ww2.mathworks.cn/matlabcentral/answers/1706505-rename-files-after-a-certain-string-in-the-file-itself-appears

评论： Gianluca Regina 2022-4-27

Dear MatLab users,

I have a bunch of files in a folder I need to rename. Basically, I want to delete the first 5 or 6 characters of the filename, those before a certain string. However, I do not know when this occurs, so I need to code it using something like strfind, but haven't managed to do it. Below is the code I have so far:

files_csv = dir('*.csv'); 
    for i = 1 : length(files_csv)
        baseFileName = files_csv(i).name;
        %newFileName = baseFileName(6:end);
        copyfile( baseFileName , newFileName )
end

Instead on newFileName = baseFileName(6:end), which only deletes the first 6 characters, I need to retain the characters after the string "PGA" appears.

Thanks

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Answer 1

Jan 2022-4-27

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https://ww2.mathworks.cn/matlabcentral/answers/1706505-rename-files-after-a-certain-string-in-the-file-itself-appears#answer_952335

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An explicit example would be useful: old name and new name.

Maybe:

files_csv = dir('*.csv'); 
for i = 1 : length(files_csv)
    baseFileName = files_csv(i).name;
    newFileName  = extractAfter(baseFileName, "PGA");
    copyfile( baseFileName , newFileName )
end

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Gianluca Regina 2022-4-27

result.PNG

Oh, sorry about that. Nevertheless, your adjustment works perfectly, thank you very much! For future reference, I attach the screenshot of the result of your code.

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