Group multiple subtree directives together. Such subtree directives are logically ORed together.
/home/nickiso/src !*.o !core /home/nickiso/Mail /home/nickiso/docs *.sdw CHECK all IGNORE mtime lnmtime dirmtime
The files included in the previous example are as follows:
Everything under /home/nickiso/src except for *.o and core files
Everything under /home/nickiso/Mail
All files under /home/nickiso/docs that end in *.sdw
For these files, all attributes are checked except for modification times.