The eTSyncUsers=1 means to create any accounts that should be there based on templates and/or assign account templates to those accounts as needed.
The eTSyncDelete=1 means to delete any accounts that are not prescribed by a Provisioning Role/Template and to delete those accounts.
You can try the following:
etautil -u user -p pwd update 'eTGlobalUserContainerName=Global Users,eTNamespaceName=CommonObjects' eTGlobalUser eTGlobalUserName='%UID%' to eTRoleDN='';
etautil -u user -p pwd update 'eTGlobalUserContainerName=Global Users,eTNamespaceName=CommonObjects' eTGlobalUser eTGlobalUserName='%UID%' to eTSyncDelete='1';
If you want to perform a single etautil bind and then feed in the file of commands it would be:
etautil -u user -p pwd -f input.txt
where input.txt would have one command per line such as:
update 'eTGlobalUserContainerName=Global Users,eTNamespaceName=CommonObjects' eTGlobalUser eTGlobalUserName='%UID%' to eTRoleDN='';
update 'eTGlobalUserContainerName=Global Users,eTNamespaceName=CommonObjects' eTGlobalUser eTGlobalUserName='%UID%' to eTSyncDelete='1';