Limiting init loading when running --batch

[Tory S. Anderson]

I use --batch as part of a shell script to export my orgmode agenda as an ICS 
file and upload it to a server where it is read by Google Calendar. But when I 
run batch, it loads my entire emacs (most of which is not necessary for this 
operation) and sometimes chokes on lines that are apparently incompatible. Is 
there a way to avoid loading the whole init file, or to prepend lines with 
something that would except them from batch runs?