批量修改配置文件內IP

cat batch_modify_file.sh
#!/bin/bash
#by lrj 20181110

#收集IP後的文件
file2=$PWD/file2.txt
touch $file2

#檢查文件屬性
Checking_file(){
read -p "Please input file name:" file1
u1=find / -type f -name "$file1"|xargs ls -l|awk '{print $3}'
u2=echo $USER
[ $u1 = $u2 ] && continue || echo "登錄用戶非文件全部者，沒有權限修改，文件全部者爲：$u1"
dir_file1=find / -type f -name "$file1"
echo "文件全路徑爲：$dir_file1"
}
#抽取IP
Extract_IP(){
cat $dir_file1|grep -E -o "([0-9]{1,3}[.]){3}[0-9]{1,3}"|sort|uniq -c|sort -rn|awk '{print $NF}' > $file2
echo "chang IP list:"
cat $file2
}
#替換處理
Replace_IP(){
for line in cat $file2
do
ip1=echo $line
sleep 1
echo "source_IP(原IP): $ip1"
for i in line
do
read -p "dist_IP(替換的IP，如不替換請輸入原IP):" ip2
[ $ip1 != $ip2 ] && sed -i "s/$ip1/$ip2/g" $dir_file1 || break
done
done
}

#主函數
main(){
Checking_file
sleep 1
Extract_IP
sleep 1
Replace_IP
}
#調用
main
rm -rf $file2