builtin completion

Author: daviidy

app/main.js

@@ -193,6 +193,11 @@ class Shell {
       }
 
       const { command, args } = await this.parseCommand(input);
+
+      if (!command) {
+        // The error message is already written in parseCommand
+        continue; // Skip to the next iteration
+      }
 
       const result = await command.execute(args);
       shouldContinue = result.shouldContinue;