diff --git a/src/python/jw/pkg/lib/App.py b/src/python/jw/pkg/lib/App.py
index 9832bff2..329ec074 100644
--- a/src/python/jw/pkg/lib/App.py
+++ b/src/python/jw/pkg/lib/App.py
@@ -52,6 +52,7 @@ class App: # export
         from .Cmd import Cmd
 
         self.__args: Namespace|None = None
+        self.__cmdline: str|None = None
         self.__default_log_flags: str = os.getenv('JW_DEFAULT_LOG_FLAGS', default='stderr,position,prio,color')
         self.__default_log_level: str|int|None = os.getenv('JW_DEFAULT_LOG_LEVEL', default=NOTICE)
         self.__default_log_file: str|None = os.getenv('JW_DEFAULT_LOG_FILE', default=None)
@@ -137,6 +138,14 @@ class App: # export
     async def _run(self, args: argparse.Namespace) -> None:
         return await self.args.func(args)
 
+    @property
+    def cmdline(self) -> str:
+        if self.__cmdline is None:
+            with open('/proc/self/cmdline', 'rb') as f:
+                raw = f.read().split(b'\0')[:-1]
+            self.__cmdline = ' '.join(shlex.quote(arg.decode()) for arg in raw)
+        return self.__cmdline
+
     @property
     def args(self) -> argparse.Namespace:
         return self.__args