From db9932a9e2470732e4f61ad6b711e89a92ce65fa Mon Sep 17 00:00:00 2001
From: Kartik Agaram <vc@akkartik.com>
Date: Thu, 28 May 2020 21:26:03 -0700
Subject: 6418

---
 apps/cat.mu | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/apps/cat.mu b/apps/cat.mu
index 0fb68653..13bf007c 100644
--- a/apps/cat.mu
+++ b/apps/cat.mu
@@ -3,6 +3,18 @@
 
 fn main _args: (addr array (addr array byte)) -> exit-status/ebx: int {
   var args/eax: (addr array (addr array byte)) <- copy _args
-  var n/eax: int <- length args
-  exit-status <- copy n
+$main-body: {
+    var n/eax: int <- length args
+    compare n, 1
+    {
+      break-if->
+      print-string "usage: cat <filename>\n"
+      break $main-body
+    }
+    {
+      break-if-<=
+      print-string "success\n"
+    }
+  }
+  exit-status <- copy 0
 }
-- 
cgit 1.4.1-2-gfad0