diff --git a/rwx/__init__.py b/rwx/__init__.py
index ee9f51e..50c7cbe 100644
--- a/rwx/__init__.py
+++ b/rwx/__init__.py
@@ -2,14 +2,16 @@
 
 __version__ = "0.0.1"
 
+from os import linesep
+
 
 class Class:
     """Root class."""
 
     def __repr__(self) -> str:
-        """Represent object variables.
+        """Return machine-readable state.
 
-        :return: representation
+        :return: state
         :rtype: str
         """
         name = self.__class__.__name__
@@ -18,3 +20,14 @@ class Class:
         ]
         arguments = ", ".join(attributes)
         return f"{name}({arguments})"
+
+    def __str__(self) -> str:
+        """Return human-readable state.
+
+        :return: state
+        :rtype: str
+        """
+        attributes = [
+            f"{k} = {v}" for k, v in vars(self).items() if not k.startswith("_")
+        ]
+        return linesep.join(attributes)
diff --git a/rwx/os/abstract.py b/rwx/os/abstract.py
index 8b99c28..f4837fc 100644
--- a/rwx/os/abstract.py
+++ b/rwx/os/abstract.py
@@ -17,10 +17,3 @@ class OS(Class, ABC):
     @abstractmethod
     def get_name(self) -> str:
         """Return mandatory name."""
-
-    def __str__(self) -> str:
-        """Return root & name."""
-        return f"""\
-root = {self.root}
-name = {self.name}
-"""
diff --git a/rwx/os/pm/__init__.py b/rwx/os/pm/__init__.py
index b3cacc4..6236ee6 100644
--- a/rwx/os/pm/__init__.py
+++ b/rwx/os/pm/__init__.py
@@ -21,10 +21,3 @@ class PM(Class, ABC):
     @abstractmethod
     def get_install_command(self) -> Command:
         """Command to install package(s)."""
-
-    def __str__(self) -> str:
-        """Return commands."""
-        return f"""\
-  clean = {self.clean}
-install = {self.install}
-"""
diff --git a/rwx/prj/__init__.py b/rwx/prj/__init__.py
index 3cba90b..c0251e2 100644
--- a/rwx/prj/__init__.py
+++ b/rwx/prj/__init__.py
@@ -14,12 +14,3 @@ class Project(Class):
         self.file = self.raw.resolve()
         self.root: Path = self.file.parent
         self.name: str = self.root.name
-
-    def __str__(self) -> str:
-        """Return file, root & name."""
-        return f"""\
- raw = {self.raw}
-file = {self.file}
-root = {self.root}
-name = {self.name}
-"""
diff --git a/rwx/ps/__init__.py b/rwx/ps/__init__.py
index 601aca3..584c50d 100644
--- a/rwx/ps/__init__.py
+++ b/rwx/ps/__init__.py
@@ -13,13 +13,6 @@ class Command(Class):
         self.raw = arguments
         self.flat: list[str] = []
 
-    def __str__(self) -> str:
-        """Return raw & flat."""
-        return f"""\
- raw = {self.raw}
-flat = {self.flat}
-"""
-
 
 def get_tuples_args(*items: str | tuple[str, ...]) -> list[str]:
     """Turn arguments tuples into an arguments list."""