Using onunload and onload from script/chron

A newbie question, I checked the archives but couldn't find anything to help me. v 7x on hp-ux 11x I want to copy the productiondb to testdb on tape using chron. My script calls onunload and onload, which interactively prompts for a tape and carriage return. I noticed from the doc some utilities have a -y option, bypassing prompts. But onload doesn't appear to support this. Is there a way to do this via a script bypassing the onload and unonload prompt? TIA Doug dougf@sd81.k12.wa.us