Strips out DNA between a pair of vector sequences emboss vectorstrip -sequence $input1 -vectorsfile $input2 -outseq $ofile1 -outfile $ofile2 -vectorfile yes -mismatch "$mismatch" -besthits $besthits -linkera "$linkera" -linkerb "$linkerb" -osformat4 $out_format1 -auto You can view the original documentation here_. .. _here: http://emboss.sourceforge.net/apps/release/5.0/emboss/apps/vectorstrip.html