diff --git a/rwx/os/pm/__init__.py b/rwx/os/pm/__init__.py
index e359a88..d248e47 100644
--- a/rwx/os/pm/__init__.py
+++ b/rwx/os/pm/__init__.py
@@ -10,8 +10,13 @@ class PM(ABC):
 
     def __init__(self) -> None:
         """Set commands."""
+        self.clean = self.get_clean_command()
         self.install = self.get_install_command()
 
+    @abstractmethod
+    def get_clean_command(self) -> Command:
+        """Command to clean packages cache."""
+
     @abstractmethod
     def get_install_command(self) -> Command:
         """Command to install package(s)."""
@@ -19,5 +24,6 @@ class PM(ABC):
     def __str__(self) -> str:
         """Return commands."""
         return f"""\
+  clean = {self.clean}
 install = {self.install}
 """
diff --git a/rwx/os/pm/apt.py b/rwx/os/pm/apt.py
index ac669b6..03217b8 100644
--- a/rwx/os/pm/apt.py
+++ b/rwx/os/pm/apt.py
@@ -7,6 +7,10 @@ from rwx.ps import Command
 class APT(PM):
     """Advanced Package Tool."""
 
+    def get_clean_command(self) -> Command:
+        """Return clean command."""
+        return Command()
+
     def get_install_command(self) -> Command:
         """Return install command."""
         return Command()