(a) Set OLDSYBASE to your pre 12.5 release directory.
(b) Set your OLDSYBASE_ASE to your ASE component version ONLY if you are
upgrading from ASE 12.0 version and above.
For e.g., set OLDSYBASE_ASE to ASE-12_0 if you are upgrading from ASE 12.0
If you are upgrading from 11.9.X and below, set OLDSYBASE_ASE to NULL value
(c) Set your OLDSYBASE_OCS to your Opent Client/Server Library version ONLY if you are
upgrading from ASE 12.0 version and above.
For e.g., set OLDSYBASE_OCS to OCS-12_0 if you are upgrading from ASE 12.0
If you are upgrading from 11.9.X and below, set OLDSYBASE_OCS to NULL value
Please guide where to set environment variable . I am not linux proficient