I have two files. file1 has 100 records. file2 has 1000 records. Iwant to compare 3 fields of 17(int),4(INT),10(INT) bytes each record by record in two files and accumulate all the matched records into file3. the matched records should not be in file2.i.e, I want to have all the unmatched records in file2. Is there any way of doing this using DFSORT/ICETOOL??