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Task/Truncate-a-file/MATLAB/truncate-a-file.m
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Task/Truncate-a-file/MATLAB/truncate-a-file.m
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function truncate_a_file(fn,count);
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fid=fopen(fn,'r');
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s = fread(fid,count,'uint8');
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fclose(fid);
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fid=fopen(fn,'w');
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s = fwrite(fid,s,'uint8');
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fclose(fid);
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