From fc337af2b6275d8b0b8bc41b5e2eb3619eb47bf1 Mon Sep 17 00:00:00 2001
From: Robert Morris <rtm@csail.mit.edu>
Date: Thu, 5 Sep 2019 16:50:55 -0400
Subject: [PATCH] fix a grep bug

---
 user/grep.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/user/grep.c b/user/grep.c
index 152c8a8..5e1f2c0 100644
--- a/user/grep.c
+++ b/user/grep.c
@@ -26,8 +26,6 @@ grep(char *pattern, int fd)
       }
       p = q+1;
     }
-    if(p == buf)
-      m = 0;
     if(m > 0){
       m -= p - buf;
       memmove(buf, p, m);