Prepare and use a resource file for rs_init.
Sybase supplies several resource file templates for Replication Server. Each template contains the attributes that are valid for a certain rs_init operation. Copy and edit a template file, which is supplied with the Replication Server software.
copy install.rs install.rsx
edit install.rsx
%SYBASE%\%SYBASE_REP%\install\rs_init -r install.rsx