shell利用mysql表项的icmp检测

+----+-----------------+--------+--------+
| id | ip_host         | desc   | status |
+----+-----------------+--------+--------+
|  1 | 8.8.8.8         | 电信   |      0 |
| 23 | 114.114.114.114 | 联通   |      0 |
| 29 | 114.114.114.117 | 测试   |      1 |
| 21 | 2.2.2.2         | 电信   |      1 |
| 15 | 222.222.222.1   | 电信   |      0 |
| 24 | 223.3.2.2       | 谷歌   |      1 |
| 26 | 23.24.24.32     | 测完   |      1 |
| 25 | 232.23.22.32    | 测试   |      1 |
+----+-----------------+--------+--------+

#!/bin/sh
PATH=$PATH

DB_table="iphost"
DB_status="status"
DB_vlues="ip_host" 
  
            ping_ip(){
                sql_host_status=`mysql -uusername -ppassword  test -e "select status from $DB_table where ip_host=‘$1‘"|grep -v $DB_status`
                ping -c 4 -W 1 $1 > /dev/null 2>&1
                if [ $? -ne $sql_host_status ]
                then
                   des=`mysql -uusername -ppassword  test -e "select * from iphost where $DB_vlues like ‘$1‘"|awk ‘{print $3}‘|grep -v desc`
                   if [ $sql_host_status == 0 ]
                   then
                       #$sql_host_status="1"
                       echo "$1 is bad"
                       #更新状态为1
                       mysql -uusername -ppassword  test -e "update $DB_table set $DB_status=‘1‘ where ($DB_vlues=‘$1‘)"
                   else
                       #$sql_host_status="0"
                       echo "$1 is ok"
                       #更新状态为0
                       mysql -uusername -ppassword  test -e "update $DB_table set $DB_status=‘0‘ where ($DB_vlues=‘$1‘)"
                   fi
                else
                       continue
                fi
}
while true
do
    echo ""
    while true
    do
        for i in `mysql -uusername -ppassword  test -e "select ip_host from iphost" |awk ‘{print $1}‘|grep -v ip_host`
        do
            ping_ip $i
        done
    done
    sleep 1
    break
done