diff --git a/src/python/jw/pkg/cmds/distro/backend/BeDup.py b/src/python/jw/pkg/cmds/distro/backend/BeDup.py
new file mode 100644
index 00000000..89019286
--- /dev/null
+++ b/src/python/jw/pkg/cmds/distro/backend/BeDup.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+
+import abc
+from argparse import Namespace
+
+from .Backend import Backend as Base
+from ..CmdDup import CmdDup as Parent
+
+class BeDup(Base):
+
+    def __init__(self, parent: Parent):
+        super().__init__(parent)
+
+    @abc.abstractmethod
+    async def run(self, args: Namespace) -> None:
+        pass
diff --git a/src/python/jw/pkg/cmds/distro/backend/BeInstall.py b/src/python/jw/pkg/cmds/distro/backend/BeInstall.py
new file mode 100644
index 00000000..98a6f806
--- /dev/null
+++ b/src/python/jw/pkg/cmds/distro/backend/BeInstall.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+
+import abc
+from argparse import Namespace
+
+from .Backend import Backend as Base
+from ..CmdInstall import CmdInstall as Parent
+
+class BeInstall(Base):
+
+    def __init__(self, parent: Parent):
+        super().__init__(parent)
+
+    @abc.abstractmethod
+    async def run(self, args: Namespace) -> None:
+        pass
diff --git a/src/python/jw/pkg/cmds/distro/backend/BeRefresh.py b/src/python/jw/pkg/cmds/distro/backend/BeRefresh.py
new file mode 100644
index 00000000..496cc062
--- /dev/null
+++ b/src/python/jw/pkg/cmds/distro/backend/BeRefresh.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+
+import abc
+from argparse import Namespace
+
+from .Backend import Backend as Base
+from ..CmdRefresh import CmdRefresh as Parent
+
+class BeRefresh(Base):
+
+    def __init__(self, parent: Parent):
+        super().__init__(parent)
+
+    @abc.abstractmethod
+    async def run(self, args: Namespace) -> None:
+        pass
diff --git a/src/python/jw/pkg/cmds/distro/backend/arch/Dup.py b/src/python/jw/pkg/cmds/distro/backend/arch/Dup.py
index 345b7b34..8fa66f2a 100644
--- a/src/python/jw/pkg/cmds/distro/backend/arch/Dup.py
+++ b/src/python/jw/pkg/cmds/distro/backend/arch/Dup.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeDup import BeDup as Base
 
-class Dup(Util):
+class Dup(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/arch/Install.py b/src/python/jw/pkg/cmds/distro/backend/arch/Install.py
index 231c6c0d..b621fdd1 100644
--- a/src/python/jw/pkg/cmds/distro/backend/arch/Install.py
+++ b/src/python/jw/pkg/cmds/distro/backend/arch/Install.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeInstall import BeInstall as Base
 
-class Install(Util):
+class Install(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/arch/Refresh.py b/src/python/jw/pkg/cmds/distro/backend/arch/Refresh.py
index 1a383c5b..849ff048 100644
--- a/src/python/jw/pkg/cmds/distro/backend/arch/Refresh.py
+++ b/src/python/jw/pkg/cmds/distro/backend/arch/Refresh.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeRefresh import BeRefresh as Base
 
-class Refresh(Util):
+class Refresh(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/debian/Dup.py b/src/python/jw/pkg/cmds/distro/backend/debian/Dup.py
index 386bb941..08fcb7a5 100644
--- a/src/python/jw/pkg/cmds/distro/backend/debian/Dup.py
+++ b/src/python/jw/pkg/cmds/distro/backend/debian/Dup.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeDup import BeDup as Base
 
-class Dup(Util):
+class Dup(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/debian/Install.py b/src/python/jw/pkg/cmds/distro/backend/debian/Install.py
index d008cdb9..ffcbce9a 100644
--- a/src/python/jw/pkg/cmds/distro/backend/debian/Install.py
+++ b/src/python/jw/pkg/cmds/distro/backend/debian/Install.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeInstall import BeInstall as Base
 
-class Install(Util):
+class Install(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/debian/Refresh.py b/src/python/jw/pkg/cmds/distro/backend/debian/Refresh.py
index 719dee23..a1f1ee94 100644
--- a/src/python/jw/pkg/cmds/distro/backend/debian/Refresh.py
+++ b/src/python/jw/pkg/cmds/distro/backend/debian/Refresh.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeRefresh import BeRefresh as Base
 
-class Refresh(Util):
+class Refresh(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/redhat/Dup.py b/src/python/jw/pkg/cmds/distro/backend/redhat/Dup.py
index ab872eb4..f100dcf3 100644
--- a/src/python/jw/pkg/cmds/distro/backend/redhat/Dup.py
+++ b/src/python/jw/pkg/cmds/distro/backend/redhat/Dup.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeDup import BeDup as Base
 
-class Dup(Util):
+class Dup(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/redhat/Install.py b/src/python/jw/pkg/cmds/distro/backend/redhat/Install.py
index 69923044..e6e291f3 100644
--- a/src/python/jw/pkg/cmds/distro/backend/redhat/Install.py
+++ b/src/python/jw/pkg/cmds/distro/backend/redhat/Install.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeInstall import BeInstall as Base
 
-class Install(Util):
+class Install(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/redhat/Refresh.py b/src/python/jw/pkg/cmds/distro/backend/redhat/Refresh.py
index e6a16824..0bc930c9 100644
--- a/src/python/jw/pkg/cmds/distro/backend/redhat/Refresh.py
+++ b/src/python/jw/pkg/cmds/distro/backend/redhat/Refresh.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeRefresh import BeRefresh as Base
 
-class Refresh(Util):
+class Refresh(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/suse/Dup.py b/src/python/jw/pkg/cmds/distro/backend/suse/Dup.py
index 4e5af5b6..206544a1 100644
--- a/src/python/jw/pkg/cmds/distro/backend/suse/Dup.py
+++ b/src/python/jw/pkg/cmds/distro/backend/suse/Dup.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeDup import BeDup as Base
 
-class Dup(Util):
+class Dup(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/suse/Install.py b/src/python/jw/pkg/cmds/distro/backend/suse/Install.py
index aa0790eb..9e99e789 100644
--- a/src/python/jw/pkg/cmds/distro/backend/suse/Install.py
+++ b/src/python/jw/pkg/cmds/distro/backend/suse/Install.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeInstall import BeInstall as Base
 
-class Install(Util):
+class Install(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)
diff --git a/src/python/jw/pkg/cmds/distro/backend/suse/Refresh.py b/src/python/jw/pkg/cmds/distro/backend/suse/Refresh.py
index 59d489b3..e9f0269d 100644
--- a/src/python/jw/pkg/cmds/distro/backend/suse/Refresh.py
+++ b/src/python/jw/pkg/cmds/distro/backend/suse/Refresh.py
@@ -3,9 +3,9 @@
 from argparse import Namespace
 
 from ...Cmd import Cmd
-from .Util import Util
+from ..BeRefresh import BeRefresh as Base
 
-class Refresh(Util):
+class Refresh(Base):
 
     def __init__(self, parent: Cmd):
         super().__init__(parent)