Linux初心者の簡易スクリプト---マッチング合法ip
731 ワード
#!/bin/bash
# Author: tianzhaogao (E-mail: [email protected])
#ip.txt ip
#okip.txt ip
rm -rf /root/test/okip.txt #
touch /root/test/okip.txt #
ip=$(cat ip.txt | grep "^[0-9]\{1,3\}\.[0-9]\{0,3\}\.[0-9]\{0,3\}\.[0-9]\{0,3\}")
for i in $ip
do
n1=$(echo "$i" | cut -d "." -f 1)
n2=$(echo "$i" | cut -d "." -f 2)
n3=$(echo "$i" | cut -d "." -f 3)
n4=$(echo "$i" | cut -d "." -f 4)
if [ "$n1" -lt 255 -a "$n2" -lt 255 -a "$n3" -lt 255 -a "$n4" -lt 255 ];then
echo "$i" >> okip.txt
fi
done