MATLAB: Find in structure a certain string

cell find

raw is a cell.
I would like to find the identification number in the example which is 13161509800019, but I only want the cell that contains 1-2-3, as the cell below it contains a trailing 4-5-6. Also how can I do that for any number of identification numbers containing 1-2-3 column 1 excluding first row 'SERIAL'?

Best Answer

C={'serial';'123456 1-2-3';'1452145 4-5-6';'745841 3-2-4';'85471245 1-2-3'}
C=C(2:end);
idx=~cellfun(@isempty,regexp(C,'1-2-3'))
D=C(idx)
out=regexp(D,'.+(?=1-2-3)','match')
out=str2double([out{:}])
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