Whois 使用 bash 脚本在 csv 文件上搜索公共 IP

Question

我有一份公网 IP 地址列表的 csv 文件格式的每日报告，我需要填写公网 IP 的主机名。主机名可以是 OrgId 或网络名。

我需要编写一个 bash 脚本来自动执行 whois 搜索，而不是手动逐个搜索并将其填充到 csv 文件中。

示例：这是一长串公共 IP 地址的摘录

    Port,Type,S_Host,S_IP,Port,D_Host,D_IP,Port
    2,tcp,N/A,8.8.8.8,2,N/A,47.246.57.232,8
    3,tcp,N/A,47.246.57.232,2,N/A,217.17.81.9,3

我需要对第 4 列和第 7 列中的 IP 进行 whois 搜索，然后在字段 3 和 6 中填写主机名。

期望的输出：

Port,Type,S_Host,S_IP,Port,D_Host,D_IP,Port
2,tcp,Google,8.8.8.8,2,Alibaba,47.246.57.232,8
3,tcp,Alibaba,47.246.57.232,2,MVTV,217.17.81.9,3

Answer 1

一种非常简单的方法是读取 IP 地址列表（即pubIP.lst）并将其写入一个新文件，但使用已解析的主机名（即hosts.lst）。

#!/bin/bash

resolveHostname() {
  # You may change or extend this function to your needs
  dig -x "$1" +short
}

# Make sure there is no file with resolved hostnames
rm hosts.lst

while read LINE; # by line from a list
do

  # Each Comma Separated Value (CSV) into a variable

  PORT=$(echo "${LINE}" | cut -d "," -f 1)
  TYPE=$(echo "${LINE}" | cut -d "," -f 2)

  # SRC_HOST=$(echo "${LINE}" | cut -d "," -f 3)
  SRC_IP=$(echo "${LINE}" | cut -d "," -f 4)
  SRC_PORT=$(echo "${LINE}" | cut -d "," -f 5)

  # DEST_HOST=$(echo "${LINE}" | cut -d "," -f 6)
  DEST_IP=$(echo "${LINE}" | cut -d "," -f 7)
  DEST_PORT=$(echo "${LINE}" | cut -d "," -f 8)

  # And write it out the columns into a new file
  # but for Col 3,6 with hostnames instead of IP

  echo "${PORT},${TYPE},$(resolveHostname ${SRC_IP}),${SRC_IP},${SRC_PORT},$(resolveHostname ${DEST_IP}),${DEST_IP},${DEST_PORT}" >> hosts.lst

done < pubIP.lst

感谢

• Passing parameters to a Bash function