i have different directories v1.0.2.0 ......... 1 v1.0.3.0 ......... 2 v1.0.3.1 ......... 3 v1.0.3.2 ......... 4 v1.0.4.1 ......... 5 v1.0.5.0 ......... 6 v1.0.6.0 ......... 7 v1.0.7.0 ......... 8 v1.0.8.0 ......... 9 v2.0.0.0 ......... 10 v2.1.0.0 ......... 11 v3.3.0 patch ......... 12 v3.3.0 v3.3.1 ......... 13 In each directory i have a csv file called LIST_CKSUM.csv. in this .csv file i have 4217480105;1759;./scripts/ProcSupprIndexTituEnRecyclage.ksh 3161659728;2136;./scripts/ProcUpdateContratsTituARecycl.ksh 628212934;1714;./scripts/ProcCrTabTitu_A_Recycler.ksh 1873485175;8994;./scripts/ProcEnvoiFRepOrian.ksh 3344529006;9108;./scripts/ProcExtractPrioriteTituReprise.ksh 1447810154;14519;./scripts/ProcExtractTituRecyclage.ksh 3331174757;7644;./scripts/ProcExtractTituRecyclageEnRejet.ksh 295369469;6121;./scripts/ProcHistoEntreesOrianSiErr.ksh 2872096685;1879;./scripts/ProcPurgeOldTituRecycl.ksh 2420599845;8436;./scripts/ProcStartExtractHisto.ksh 2411914009;20879;./scripts/ProcStartRecepRejets.ksh 2204426561;2148;./scripts/ProcUpdateTituARecycl.ksh 39859806;96770;./sql/TabMdArrachreanc_MIG.sql 1017492344;77386;./sql/TabMdArrachreanc.sql 441287525;2949;./sql/tf_ext_contact_c5_s.sql 1617798886;2954;./sql/tf_ext_contact_c5_m.sql 362083201;57349;./sql/ProcReancContact.sql 1244953996;3542;./sql/ext_contact_c5.sql 2600108407;6127;./LIV_OBX_1.0.3.1.csv if i select v1.0.3.1(option 3) i will get this window with the previous versions 1.0.3.1 1 v1.0.2.0 v1.0.3.0 and the lines of the current directory v1.0.3.1/LIST_CKSUM.csv 4217480105;1759;./scripts/ProcSupprIndexTituEnRecyclage.ksh 3161659728;2136;./scripts/ProcUpdateContratsTituARecycl.ksh 628212934;1714;./scripts/ProcCrTabTitu_A_Recycler.ksh 1873485175;8994;./scripts/ProcEnvoiFRepOrian.ksh 3344529006;9108;./scripts/ProcExtractPrioriteTituReprise.ksh 1447810154;14519;./scripts/ProcExtractTituRecyclage.ksh 3331174757;7644;./scripts/ProcExtractTituRecyclageEnRejet.ksh 295369469;6121;./scripts/ProcHistoEntreesOrianSiErr.ksh 2872096685;1879;./scripts/ProcPurgeOldTituRecycl.ksh 2420599845;8436;./scripts/ProcStartExtractHisto.ksh 2411914009;20879;./scripts/ProcStartRecepRejets.ksh 2204426561;2148;./scripts/ProcUpdateTituARecycl.ksh 39859806;96770;./sql/TabMdArrachreanc_MIG.sql 1017492344;77386;./sql/TabMdArrachreanc.sql 441287525;2949;./sql/tf_ext_contact_c5_s.sql 1617798886;2954;./sql/tf_ext_contact_c5_m.sql 362083201;57349;./sql/ProcReancContact.sql 1244953996;3542;./sql/ext_contact_c5.sql 2600108407;6127;./LIV_OBX_1.0.3.1.csv i need to compare line by line with each previous versions of v1.0.2.0 v1.0.3.0 how to compare in unix scripting can u give a solution?