由于公司安全策略要求，需要绑定了MAC地址的机器才能联网，每次新增主机都要手动绑定IP和MAC地址。非常麻烦，所以自动绑定脚本应运而生，这是根据我们公司编写的shell脚本，大婶们见笑了，请多多指教。
##################代码开始##################
#!/bin/bash
list=(`sed -rn '/([0−9|a−z|A−Z]+:)5[0−9|a−z|A−Z]+/p' tail2000.log | \
awk '{print $8" "$9}'|sed -e 's/[(|)]/ /g'|sort -rn|uniq`)
count=${#list[@]}
path=/home/dhcpd.conf
string_133="range 10.34.133.44 10.34.133.44;"
string_134="range 10.34.134.21 10.34.135.240;"
string_135="range 10.34.135.21 10.34.135.240;"
string_129="range 10.34.129.21 10.34.135.240;"
i=0
while [ $i -lt $count ]
do
num=`echo ${list[$i]:6:3}`
grep -Ewq "${list[$i]}|${list[$i+1]}" $path
if [ $? -ne 0 ];then
case $num in
129)
NO=`date +%N`
hosts=`echo "host CN${NO:1:5}{hardware ethernet ${list[$i]}; fixed-address ${list[$i+1]};}"`
sed -i "/$string_129/a '\t'$hosts" $path
sed -ir "s/'.'/\t/g" $path;;
133)
NO=`date +%N`
hosts=`echo "host CN${NO:1:5}{hardware ethernet ${list[$i]}; fixed-address ${list[$i+1]};}"`
sed -i "/$string_133/a '\t'$hosts" $path
sed -ir "s/'.'/\t/g" $path;;
134)
NO=`date +%N`
hosts=`echo "host CN${NO:1:5}{hardware ethernet ${list[$i]}; fixed-address ${list[$i+1]};}"`
sed -i "/$string_134/a '\t'$hosts" $path
sed -ir "s/'.'/\t/g" $path;;
135)
NO=`date +%N`
hosts=`echo "host CN${NO:1:5}{hardware ethernet ${list[$i]}; fixed-address ${list[$i+1]};}"`
sed -i "/$string_135/a '\t'$hosts" $path
sed -ir "s/'.'/\t/g" $path;;
esac
else
echo ${list[$i+1]} is exist!
fi
i=$(($i+2))
done
##################代码结束##################