What does '* *' mean in matlab?

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Victoria Helm 2020-6-16

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编辑： Stephen23 2020-6-16

For example:

D = dir(fullfile(logfilepath,'**','*.log'))

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Answer 1

Stephen23 2020-6-16

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编辑：Stephen23 2020-6-16

The double asterisk tells dir to recursively search the provided path, the documentation explains it with "and dir **/*.txt lists all files with a txt extension zero or more folders under the current folder. Characters next to a ** wildcard must be file separators." This feature was introduced in R2016b, so if you use an earlier version you will have to use an alternative, e.g. one of these:

https://www.mathworks.com/matlabcentral/fileexchange?q=recursive+dir