For a given subtree directive, all pattern matching statements are logically ANDed with the subtree. Patterns have the following syntax:
Wildcards are permitted for both the subtree and pattern matching statements.
The exclamation point (!) character represents logical NOT.
A pattern that terminates with a slash is a subtree. The absence of a slash indicates that the pattern is not a directory. The subtree itself does not require an end slash.
For example, the following subtree example includes the contents of /home/nickiso/src except for object files, core files, and all of the SCCS subtrees. Note that directory names that terminate with .o and directories named core are not excluded because the patterns specified do not terminate with /.
/home/nickiso/src !*.o !core !SCCS/ CHECK all