Read init file only when using interactive shell

src/main.rs

@@ -36,8 +36,7 @@ use std::thread;
 
 fn inner_main(sigint_rx : mpsc::Receiver<i32>) {
     let builtins = Builtin::map();
-    let mut shell = Shell::new(&builtins, sigint_rx);
-    shell.evaluate_init_file();
+    let shell = Shell::new(&builtins, sigint_rx);
     shell.main();
 }
 

src/shell/binary.rs

@@ -248,6 +248,8 @@ impl<'a> Binary for Shell<'a> {
             context
         });
 
+        self.evaluate_init_file();
+
         self.variables.set_array (
             "args",
             iter::once(env::args().next().unwrap()).collect(),