Fix check for chroot script directory

[grml-debootstrap.git] / chroot-script

diff --git a/chroot-script b/chroot-script
index 072fb4c..e5ea8a3 100755 (executable)
--- a/chroot-script
+++ b/chroot-script
@@ -340,7 +340,7 @@ hostname() {
 
         # listen on loopback interface only:
         sed -i "s/^inet_interfaces = .*/inet_interfaces = loopback-only/" /etc/postfix/main.cf
-        grep inet_interfaces /etc/postfix/main.cf || echo 'inet_interfaces = loopback-only' >> /etc/postfix/main.cf
+        grep -q inet_interfaces /etc/postfix/main.cf || echo 'inet_interfaces = loopback-only' >> /etc/postfix/main.cf
      fi
   fi
 }