本機多個IP 
 複製代碼 代碼如下:
 
ifconfig | awk '/inet/{print $2}' | awk -F: '{print $2}'  
 
首先,先用這個來著 
 複製代碼 代碼如下:
 
CheckIPAddress()        
 
{
 
        echo $1 > /tmp/tmpserverip
 
        echo $1 |grep "^[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}$" > /dev/null
 
        if [ $? = 1 ];    then
 
                return 1
 
        else
 
                a=$(cut -d. -f1 /tmp/tmpserverip)
 
                b=$(cut -d. -f2 /tmp/tmpserverip)
 
                c=$(cut -d. -f3 /tmp/tmpserverip)
 
                d=$(cut -d. -f4 /tmp/tmpserverip)
 
    
 
                for loop in $a $b $c $d
 
                do
 
                        if [ $loop -ge 255 ] || [ $loop -le 0 ]; then
 
                                return 2
 
                        fi
 
                done
 
        fi
 
            
 
        return 0
 
} 
 
最初的時候,參考過下面的這些 
 複製代碼 代碼如下:
 
grep "^([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.$" 
 
輸入ip,檢查其是否滿足的ip書寫規範,即不能大於255,不能有字母,和其他標點,參考網上的,自己搞了個如下,做個標記!@ 
 複製代碼 代碼如下:
 
echo -n 'Enter the Server-ip:'
 
        read BISSip
 
        echo $BISSip > /tmp/tmpserverip
 
        echo $BISSip|grep "^[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}$" > /dev/null
 
        num=$?
 
        if [ $num = 1 ]
 
        then
 
                echo error ip,please enter correct
 
       
 
        else
 
  {
 
        a=$(cut -d. -f1 /tmp/tmpserverip)
 
        b=$(cut -d. -f2 /tmp/tmpserverip)
 
        c=$(cut -d. -f3 /tmp/tmpserverip)
 
        d=$(cut -d. -f4 /tmp/tmpserverip)
 
   
 
        {
 
                if [ $a -ge 255 ]||[ $a -le 0 ]
 
                then
 
                        echo a:error ip
 
                else
 
                        echo 1 > /tmp/jack
 
                 fi
 
        }
 
   
 
        {
 
                if [ $b -ge 255 ]||[ $b -lt 0 ]
 
                then
 
                        echo b:error ip
 
        else
 
                        echo 1 >>/tmp/jack
 
        fi
 
   
 
        }
 
    
 
        { if [ $c -ge 255 ]||[ $c -lt 0 ]
 
                 then
 
                         echo c:error ip
 
                else
 
                        echo 1 >>/tmp/jack
 
                    fi
 
         }
 
   
 
         { if [ $d -ge 255 ]||[ $d -le 0 ]
 
                then
 
                        echo d:error ip
 
                else
 
                        echo 1 >> /tmp/jack
 
                fi
 
         }