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#!/bin/sh
#****************************************************************************** 
# Summary : This shell script start synch towards NTP server.  # # 
#****************************************************************************** 
DAEMON="/usr/sbin/ntpdate"

MYSERVER1="0.de.pool.ntp.org"
MYSERVER2="1.de.pool.ntp.org"
MYSERVER3="2.de.pool.ntp.org"
MYSERVER4="3.de.pool.ntp.org"
MYSERVER5="ptbtime1.ptb.de"
MYSERVER6="ptbtime2.ptb.de"

TESTSERVER1=`ping -c 1 $MYSERVER1 | grep "100% packet loss"`

if [ -z "$TESTSERVER1" ]; then
    MYFAVSERVER="$MYSERVER1"
    echo -e "\033[1;37;42m$MYSERVER1 is Online\033[0m"
elif [ ! -z "$TESTSERVER1" ]; then
    echo -e "\033[1;37;41mServer1 is OFFLINE, try Server2...\033[0m"
    TESTSERVER2=`ping -c 1 $MYSERVER2 | grep "100% packet loss"`
    if [ -z "$TESTSERVER2" ]; then
        MYFAVSERVER="$MYSERVER2"
        echo -e "\033[1;37;42m$MYSERVER2 is Online\033[0m"
    fi
elif [ ! -z "$TESTSERVER1" ] && [ ! -z "$TESTSERVER2" ]; then
    echo -e "\033[1;37;41mServer1 + Server2 are OFFLINE, try Server3...\033[0m"
    TESTSERVER3=`ping -c 1 $MYSERVER3 | grep "100% packet loss"`
    if [ -z "$TESTSERVER3" ]; then
        MYFAVSERVER="$MYSERVER3"
        echo -e "\033[1;37;42m$MYSERVER3 is Online\033[0m"
    fi
elif [ ! -z "$TESTSERVER1" ] && [ ! -z "$TESTSERVER2" ] && [ ! -z "$TESTSERVER3" ]; then
    echo -e "\033[1;37;41mServer1 + Server2 + Server3 are OFFLINE, try Server4...\033[0m"
    TESTSERVER4=`ping -c 1 $MYSERVER4 | grep "100% packet loss"`
    if [ -z "$TESTSERVER4" ]; then
        MYFAVSERVER="$MYSERVER4"
        echo -e "\033[1;37;42m$MYSERVER4 is Online\033[0m"
    fi
elif [ ! -z "$TESTSERVER1" ] && [ ! -z "$TESTSERVER2" ] && [ ! -z "$TESTSERVER3" ] && [ ! -z "$TESTSERVER4" ]; then
    echo -e "\033[1;37;41mServer1 + Server2 + Server3 +Server4 are OFFLINE, try Server5...\033[0m"
    TESTSERVER5=`ping -c 1 $MYSERVER5 | grep "100% packet loss"`
    if [ -z "$TESTSERVER5" ]; then
        MYFAVSERVER="$MYSERVER5"
        echo -e "\033[1;37;42m$MYSERVER5 is Online\033[0m"
    fi
elif [ ! -z "$TESTSERVER1" ] && [ ! -z "$TESTSERVER2" ] && [ ! -z "$TESTSERVER3" ] && [ ! -z "$TESTSERVER4" ] && [ ! -z "$TESTSERVER5" ]; then
    echo -e "\033[1;37;41mServer1 + Server2 + Server3 +Server4 + Server5 are OFFLINE, try Server6...\033[0m"
    TESTSERVER6=`ping -c 1 $MYSERVER6 | grep "100% packet loss"`
    if [ -z "$TESTSERVER6" ]; then
        MYFAVSERVER="$MYSERVER6"
        echo -e "\033[1;37;42m$MYSERVER6 is Online\033[0m"
    fi
else
    echo -e "\033[1;37;41mNO ntp-server available\033[0m"
    MYFAVSERVER=""
fi
case "$1" in
start)
echo "Start $DAEMON"
if [ -f "$DAEMON" ] && [ ! -z "$MYFAVSERVER" ]; then
    "$DAEMON" "$MYFAVSERVER" &
    echo -e "\033[1;37;42mdone.\033[0m"
else
    echo -e "\033[1;37;41mfailed.\033[0m"
fi
;;
stop)
echo -n 'Stop $DAEMON'
killall $DAEMON
echo -e "\033[1;37;42mdone.\033[0m"
;;
restart)
$0 stop
sleep 2
$0 start
;;
*)
echo "Usage: $0 {start|stop|restart}"
exit 1
;;
esac
exit 0

#!/bin/sh
DAEMON="/usr/sbin/crond"
if [ ! -e /var/spool/cron/crontabs ]; then
    mkdir -p /var/spool/cron/crontabs
fi
if [ ! -e /var/spool/cron/crontabs/root ]; then
    cp /etc/cron/crontabs/* /var/spool/cron/crontabs/
fi
if [ -e $DEAMON ]; then
    echo Starting Cron
    $DAEMON
else
    exit
fi