Exit code 1 if non-interactive execution fails

Closes gh-10807

IPython/terminal/ipapp.py

@@ -356,6 +356,8 b' class TerminalIPythonApp(BaseIPythonApplication, InteractiveShellApp):'
             self.shell.mainloop()
         else:
             self.log.debug("IPython not interactive...")
+            if not self.shell.last_execution_succeeded:
+                sys.exit(1)
 
 def load_default_config(ipython_dir=None):
     """Load the default config file from the default ipython_dir.