Re: IOC build to generate single DB file from two substitutions on single template file

[David Bracey via Tech-talk <tech-talk at aps.anl.gov>]

And with all the substitutions done at build time - none at run time via dbLoadRecords, etc.

From: David Bracey <dbracey at fnal.gov>
Date: Friday, July 24, 2026 at 10:26 AM
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: IOC build to generate single DB file from two substitutions on single template file

I am trying to:

1. Start from a single template file with a single record instance
2. Apply two different substitution files
3. Result in a single DB file with a single record instance (with substitutions performed)

So what I’m looking for is either a two-pass substitution, or having one subs file include the other, but I don’t think those things exist.

The purpose of this is to be able to create a number of instances of IOCs, where many of the substitutions are common to all, but some are per-instance.

Dave Bracey

Fermi National Accelerator Laboratory