linux执行ntp,linux shell脚本中执行ntpclient

#!/bash/sh

# Program:

# execute ntpclient cmd

# Version: v1.0

# Author: hp

#

function syntime() {

echo "synchronizing time...."

echo "server is $1"

echo "execute cmd..."

if test -z $1; then

echo "server is $1"

h=""

fi

if test -z $count; then

echo "count is $count"

c=""

fi

if test -z $interval; then

i=""

fi

echo "$ntpd $h $1 $c $count $d $s $i $interval"

$ntpd $h $1 $c $count $d $s $i $interval

}

start_time="`date +%Y%m%d`"

ntpd="/home/haopeng/open_source/ntpclient-2015/ntpclient"

declare -f syntime

echo "start time is $start_time"

array=($@)

echo ${array[*]}

echo "total element count is $#"

for ((i=0; i

do

sleep 1

echo ${array[i]}

case ${array[i]} in

"-h")

i=$(($i+1))

h="-h"

server=${array[i]}

echo "server is ${array[i]}"

;;

"-c")

c="-c"

i=$(($i+1))

count=${array[i]}

echo "count is ${array[i]}"

;;

"-i")

i="-i"

i=$(($i+1))

interval=${array[i]}

echo "interval is ${array[i]}"

;;

"-s")

s="-s"

;;

"-d")

d="-d"

;;

esac

done

echo "now time is $(date +%Y%m%d)"

echo $server | grep ","

if [ $? -eq 0 ]; then

echo "there is muti server"

server_split=${server//,/ }

while [ true ]

do

for everyserver in $server_split

do

syntime $everyserver

if [ $start_time != `date +%Y%m%d` ]; then

echo "time is synchronized!!"

fi

while [ true ]

do

echo "check ntpclient process whether exit or not"

if [ `ps -ef | grep "ntpclient" | wc -l` -eq 1 ]; then

echo "ntpclient is exit.."

break

else

echo "ntpclient is not exit and wait to continue check."

sleep 1

fi

done

done

echo "all server is polling and wait sleep 60 second.."

sleep 60

done

else

echo "there is one server"

syntime $server

fi