- specify a small number of objects in the -set command (-set Account -set Contact -set Opportunity)
- create a list of objects in an upload.config.[name] control file and use a -setGlobal command, referencing that particular named file
- use a -recover command, which will recover all the children and their parent-child and recursive relationships
For any of these, you can exclude objects with an exclude.config.[name] file.
You can further exclude objects by their type (Standard, Custom, Share, Team, Tag, History).