From 525d516df94b7c044cd97de27b6924d188ed4048 Mon Sep 17 00:00:00 2001
From: Victor Lowther <victor.lowther@gmail.com>
Date: Wed, 29 Jul 2009 17:36:31 -0400
Subject: Use $(( )) for arithmetic statements instead of let or $[ ].

---
 sysconfig/network-scripts/ifup-ipv6 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'sysconfig/network-scripts/ifup-ipv6')

diff --git a/sysconfig/network-scripts/ifup-ipv6 b/sysconfig/network-scripts/ifup-ipv6
index 1dd30aff..ff14b6dd 100755
--- a/sysconfig/network-scripts/ifup-ipv6
+++ b/sysconfig/network-scripts/ifup-ipv6
@@ -225,7 +225,7 @@ if [ "$IPV6TO4INIT" = "yes" ]; then
 		ipv4mtu="$(ipv6_exec_ip link show dev $DEVICE | grep -w "mtu" | awk '{ print $5 }')"
 		if [ -n "$ipv4mtu" ]; then
 			# IPv6 tunnel MTU is IPv4 MTU minus 20 for IPv4 header
-			tunnelmtu=$[ $ipv4mtu - 20 ]
+			tunnelmtu=$(($ipv4mtu-20))
 		fi
 
 		if [ -n "$IPV6TO4_MTU" ]; then
-- 
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