I have a text file that looks like:
MA01001A1A03.f1 760 5640111 ad1
MA01001A1A03.f1 760 42572233 ubq
MA01001A1A04.f1 300 15232924 ubq
MA01001A1A04.f1 300 145334669 DNA
MA01001A1B22.f1 580 77745475 ra
MA01001A1B22.f1 580 30409730 ra
How do I write a perl script to extract the lines based on the first word being new in the list? So the extracted list should have only:
MA01001A1A03.f1 760 5640111 ad1
MA01001A1A04.f1 300 15232924 ubq
MA01001A1B22.f1 580 77745475 ra
Any tips on how to get this done is appreciated very much.

In reply to How to extract lines starting with new names/words by sm2004

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