#!/bin/sh
ORG="insmod epxa_wdt$"
NEW="insmod epxa_wdt margin=10"
FILE="/etc/init.d/rcS"
TMPFILE="/tmp/F$$"
grep "$ORG" $FILE > /dev/null 2>&1
if [ $? -ne 0 ]; then
	echo "Could not find line \"$ORG\" in $FILE to modify"
	exit 1
fi
sed "s/${ORG}/${NEW}/" $FILE > $TMPFILE
if [ $? -ne 0 ]; then
	echo "replace failed, $FILE untouched"
	exit 1
fi
mv $TMPFILE $FILE
chmod 755 $FILE
exit 0