From 7e6c37e67e6da62e02089fc3292569103b7e94b3 Mon Sep 17 00:00:00 2001
From: Frans Kaashoek <kaashoek@mit.edu>
Date: Tue, 10 Sep 2019 12:30:10 -0400
Subject: Support exit status for exit/wait One test case for returning a exit
 status Passes usertests, but haven't used it to simplify tests

---
 user/grep.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'user/grep.c')

diff --git a/user/grep.c b/user/grep.c
index 5e1f2c0..43406b8 100644
--- a/user/grep.c
+++ b/user/grep.c
@@ -41,24 +41,24 @@ main(int argc, char *argv[])
 
   if(argc <= 1){
     fprintf(2, "usage: grep pattern [file ...]\n");
-    exit();
+    exit(-1);
   }
   pattern = argv[1];
 
   if(argc <= 2){
     grep(pattern, 0);
-    exit();
+    exit(0);
   }
 
   for(i = 2; i < argc; i++){
     if((fd = open(argv[i], 0)) < 0){
       printf("grep: cannot open %s\n", argv[i]);
-      exit();
+      exit(-1);
     }
     grep(pattern, fd);
     close(fd);
   }
-  exit();
+  exit(0);
 }
 
 // Regexp matcher from Kernighan & Pike,
-- 
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