allow mismatches in indrops v1 or v2 linker

        for convFile in "${convFiles[@]}"; do

            #remove adapter if present

            sed -E '

                /^(.{8})GAGTGATTGCTTGTGACGCCTT(.{8})/ {

                s/^(.{8})GAGTGATTGCTTGTGACGCCTT(.{8})/\1\2/g

                /^(.{8})GAGTG............GCCTT(.{8})/ {

                s/^(.{8})GAGTG............GCCTT(.{8})/\1\2/g

                n

                n

                s/^(.{8}).{22}(.{8})/\1\2/g