Code: Date range 20110225 0600 - 20110225 0700 Revision 1 Action randomize Lot AUP05078.1 Operation Pst-PSD-Imp-RsStrp-Random.0 Suboperation GA_PSDImRS actualqty 25 equipment D1HNNT01 device ARODINA-AU1B technology C16 Date 20110225 064924000 Employee som %wafer orig_slot orig_cass in_house_scribe vendor_scribe final_slot final_cass wafer 5 6594 AUP05078.1. UXJZ3031SHC1 24 6594 wafer 18 6594 AUP05078.1.18 UXJZ3035SHE3 3 6594 wafer 12 6594 AUP05078.1.25 UXJZ3036SHB2 6 6594 wafer 19 6594 AUP05078.1. UXJZ3117SHD0 12 6594 wafer 8 6594 AUP05078.1.9 UXJZ3197SHC1 5 6594 wafer 16 6594 AUP05078.1.13 UXJZ3202SHF7 9 6594 wafer 20 6594 AUP05078.1.16 UXJZ3203SHC6 10 6594 wafer 9 6594 AUP05078.1.15 UXJZ3204SHH0 11 6594 wafer 23 6594 AUP05078.1.20 UXJZ3205SHD7 18 6594 wafer 25 6594 AUP05078.1.21 UXJZ3206SHA6 8 6594 wafer 21 6594 AUP05078.1.19 UXJZ3207SHF0 19 6594 wafer 2 6594 AUP05078.1.14 UXJZ3208SHB7 22 6594 wafer 24 6594 AUP05078.1.17 UXJZ3209SHG1 15 6594 wafer 14 6594 AUP05078.1.12 UXJZ3210SHB7 16 6594 wafer 4 6594 AUP05078.1.11 UXJZ3211SHG1 23 6594 wafer 17 6594 AUP05078.1. UXJZ3213SHH2 2 6594 wafer 10 6594 AUP05078.1.10 UXJZ3216SHF2 7 6594 wafer 11 6594 AUP05078.1. UXJZ3264SHE4 14 6594 wafer 15 6594 AUP05078.1.8 UXJZ3265SHB3 13 6594 wafer 3 6594 AUP05078.1.7 UXJZ3267SHC4 17 6594 wafer 6 6594 AUP05078.1.1 UXJZ3268SHG6 20 6594 wafer 7 6594 AUP05078.1. UXJZ3271SHD5 1 6594 wafer 13 6594 AUP05078.1.24 UXJZ3281SHA6 4 6594 wafer 1 6594 AUP05078.1.22 UXJZ3282SHF0 25 6594 wafer 22 6594 AUP05078.1.23 UXJZ3283SHB7 21 6594 My code should filter out if its find this null value and write the entire file in different directory.Kindly help how i can able to filter out the data if one of the com.position is NULL write the entire output to the different log file,,Im using unix environement to run the code and need help..