syntax:glob
*.[568ao]
*.ao
*.so
*.pyc
*.swp
*.swo
._*
.nfs.*
[568a].out
*~
*.orig
*.pb.go
core
_obj
_test
src/pkg/Make.deps
_testmain.go

syntax:regexp
^pkg/
^src/cmd/(.*)/6?\1$
^.*/core.[0-9]*$