Hi, I have two files, file1 and file2. file2 is reference file and file1 is getting generated by sql script on fly. I need to check either all entries in file2 is present in file1 or not. If not, i need to print those entries from file2. common entries should not be there in the output file. both the files are csv files. file structures: file1 looks like as below: ORDER_IMPORT_HPIPE ORDER_IMPORT_MHRWEB SO_MODULE MHE_PICKCNFM_INP WORK_ORDER_RECPT_PROCESS ORDER_IMPORT_ECOMMERCE file2 looks like as below: SO_MODULE - WORK_ORDER_ALLOC_PROCESS SFA_ORDERS CUSTOMER_IMPORT_PROCESS WORK_ORDER_RECPT_PROCESS ORDER_IMPORT_ECOMMERCE output file should be WORK_ORDER_ALLOC_PROCESS SFA_ORDERS CUSTOMER_IMPORT_PROCESS kalyan

Brute force method. Let me know if you have any questions: #!/bin/ksh while read myline do cnt=0 while read line do if [[ "$myline" = "$line" ]] then ((cnt+=1)) break fi done < file1 if [[ $cnt -eq 0 ]] then echo "$myline" >> output.file fi done < file2

Thank you Nail for your help... It really worked.. kalyan