From 4cf0b0973eb0874737260d0bc5643c891b454832 Mon Sep 17 00:00:00 2001
From: Rui Ueyama <rui314@gmail.com>
Date: Wed, 11 Mar 2020 16:05:43 +0900
Subject: [PATCH] cat should exit normally if reading from stdin

---
 user/cat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/user/cat.c b/user/cat.c
index 36939d8..2435b9e 100644
--- a/user/cat.c
+++ b/user/cat.c
@@ -28,7 +28,7 @@ main(int argc, char *argv[])
 
   if(argc <= 1){
     cat(0);
-    exit(1);
+    exit(0);
   }
 
   for(i = 1; i < argc; i++){