중국 IP추출 쉘스크립트 작성 > 에필로그

#!/bin/bash

ALLOCATION='CN'

wget -q http://ftp.apnic.net/stats/apnic/delegated-apnic-latest

for country in $ALLOCATION

do

  for ip in `cat delegated-apnic-latest | grep "apnic|$country|ipv4|"`

  do

    COUNTRY=`echo $ip | awk -F"|" '{ print $2 }'`

    IP_ADDR=`echo $ip | awk -F"|" '{ print $4 }'`

    TMPCIDR=`echo $ip | awk -F"|" '{ print $5 }'`

    FLTCIDR=32

    while [ $TMPCIDR -ne 1 ];

    do

      TMPCIDR=$((TMPCIDR/2))

      FLTCIDR=$((FLTCIDR-1))

    done

  echo "$IP_ADDR/$FLTCIDR" >> ./chinaips

  done

done