Temporarily don't output the result of pipe into a file

examples/pipe.c

@@ -6,8 +6,9 @@ int main(void)
     CHAIN(IN(PATH("examples", "pipe.c")),
           CHAIN_CMD(PATH("tools", "rot13")),
           CHAIN_CMD(PATH("tools", "hex")),
-          OUT("output.txt"));
-    CMD(PATH("tools", "cat"), "output.txt");
+          // OUT("output.txt")
+          );
+    //CMD(PATH("tools", "cat"), "output.txt");
 
     return 0;
 }