Dear Monks, I am new to perl, have spent so much time for this pgm with unfruitful results please help me with it. I have an array which consists of an unique Id followed by sequence of characters. for Example 1f:6 aaaabbbbcccdddgi 1f:8 ggggggiiiihhhhbb 2c:7 ffffffttttthhhhh 2f:9 ggksvskbskbgskbs 1f:0 bfgfggvkvgkgbkui now I need to eliminate the duplicates for the ID where first 2 letters of the ID is same, and keep the only the first sequence of array (for ID which have duplicates ) in result. so desired output is going to be: 1f:6 aaaabbbbcccdddgi 2c:7 ffffffttttthhhhh 2f:9 ggksvskbskbgskbs Regards

In reply to eliminating duplicates with filters by snow28

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