From 1096cd2ebc150e5c74b5e8e4016b835f34cd3f48 Mon Sep 17 00:00:00 2001
From: Bill Nottingham <notting@redhat.com>
Date: Wed, 29 Jul 2009 17:26:33 -0400
Subject: Use $() instead of `` for process expansion.

Adapted from <victor.lowther@gmail.com>.
---
 sysconfig/network-scripts/ifup-ipv6 | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

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

diff --git a/sysconfig/network-scripts/ifup-ipv6 b/sysconfig/network-scripts/ifup-ipv6
index a50d1aa4..1dd30aff 100755
--- a/sysconfig/network-scripts/ifup-ipv6
+++ b/sysconfig/network-scripts/ifup-ipv6
@@ -63,7 +63,7 @@ CONFIG=$1
 source_config
 
 # IPv6 don't need aliases anymore, config is skipped
-REALDEVICE=`echo ${DEVICE} | sed 's/:.*//g'`
+REALDEVICE=$(echo ${DEVICE} | sed 's/:.*//g')
 [ "$DEVICE" != "$REALDEVICE" ] && exit 0
 
 # Test whether IPv6 configuration is enabled for this interface, else stop
@@ -89,7 +89,7 @@ if [ -n "$IPV6ADDR" ]; then
 fi
 
 # Get current global IPv6 forwarding
-ipv6_global_forwarding_current="`ipv6_exec_sysctl -n net.ipv6.conf.all.forwarding`"
+ipv6_global_forwarding_current="$(ipv6_exec_sysctl -n net.ipv6.conf.all.forwarding)"
 
 # Set some proc switches depending on defines
 if [ "$IPV6FORWARDING" = "yes" ]; then
@@ -185,14 +185,14 @@ if [ "$IPV6TO4INIT" = "yes" ]; then
 		ipv4addr="$IPV6TO4_IPV4ADDR"
 
 		# Get local IPv4 address from interface
-		ipv4addrlocal="`ipv6_get_ipv4addr_of_device $DEVICE`"
+		ipv4addrlocal="$(ipv6_get_ipv4addr_of_device $DEVICE)"
 		if [ -z "$ipv4addrlocal" ]; then
 			# Take configured from config file
 			ipv4addrlocal="$IPADDR"
 		fi
         else
 		# Get IPv4 address from interface first (has precedence 2)
-		ipv4addr="`ipv6_get_ipv4addr_of_device $DEVICE`"
+		ipv4addr="$(ipv6_get_ipv4addr_of_device $DEVICE)"
 		if [ -z "$ipv4addr" ]; then
 			# Take configured from config file (precedence 3)
 			ipv4addr="$IPADDR"
@@ -210,7 +210,7 @@ if [ "$IPV6TO4INIT" = "yes" ]; then
 		fi
 
 		# Check/generate relay address
-		ipv6to4_relay="`ipv6_create_6to4_relay_address $IPV6TO4_RELAY`"
+		ipv6to4_relay="$(ipv6_create_6to4_relay_address $IPV6TO4_RELAY)"
 		if [ $? -ne 0 ]; then
 			valid6to4config="no"
 		fi
@@ -222,7 +222,7 @@ if [ "$IPV6TO4INIT" = "yes" ]; then
 	# Setup 6to4 tunnel (hardwired name is "tun6to4"), if config is valid
         if [ "$valid6to4config" = "yes" ]; then
 		# Get MTU of master device
-		ipv4mtu="`ipv6_exec_ip link show dev $DEVICE | grep -w "mtu" | awk '{ print $5 }'`"
+		ipv4mtu="$(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=$[ $ipv4mtu - 20 ]
@@ -284,12 +284,12 @@ if [ "$IPV6TO4INIT" = "yes" ]; then
 			fi
 
 		        if [ -n "$IPV6TO4_ROUTING" ]; then
-				ipv6to4prefix="`ipv6_create_6to4_prefix $ipv4addr`"
+				ipv6to4prefix="$(ipv6_create_6to4_prefix $ipv4addr)"
 				if [ -n "$ipv6to4prefix" ]; then
 					# Add route to local networks
 					for devsuf in $IPV6TO4_ROUTING; do
-						dev="`echo $devsuf | awk -F- '{ print $1 }'`"
-						suf="`echo $devsuf | awk -F- '{ print $2 }'`"
+						dev="$(echo $devsuf | awk -F- '{ print $1 }')"
+						suf="$(echo $devsuf | awk -F- '{ print $2 }')"
 						ipv6_add_addr_on_device ${dev} ${ipv6to4prefix}${suf}
 					done
 				else
-- 
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