I am a novice to perl so some of you may find not that much tough but i am not able to do it so i am asking this question
i have a nucletide sequence(atgtagat) and in that sequence i need to search certain number of different subsequences (substrings)around 10 which i will input one by one and after matching those subsequences i need to print TWO nucleotides(letters) BEFORE AND AFTER THE MATCHED SEQUENCE HOW I CAN DO IT?????