in reply to pattern match with different sets.

Hi All, I have a question in pattern match. I have different set of samples like CGPP5048286, WGA_PD4005a,1710STDY5035576, PD4005a, PD4005b, PD4005c. I have a script that works and finding the identity between the samples. I want to pattern match the sample names to find the same sample or its identical one like PD4005b, PD4005c are matched.

I recognize that as English, but I can attribute no meaning to that series of words.

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