P:\test>type duptest.dat >string1 AAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGTTTTTTTTTTTTTTTTT >string2 TTTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAA >string3 TTTTTTTTTTTTTTTTTxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxAAAAAAAAAAAAAAAAA P:\test>gf duptest.gf 000:001 L[ 17] ( 0 47) 000:002 L[ 17] ( 0 47) 001:002 L[ 17] ( 0 0) Completed in 0.001205 Best match: >string1 - >string2. 17 characters starting at 0 and 47. Best match: >string1 - >string3. 17 characters starting at 0 and 47. Best match: >string2 - >string3. 17 characters starting at 0 and 0.