Shell script implementation to determine whether the IP address in an IP segment code sharing

This article mainly introduces the shell script to determine whether the IP address in an IP segment code sharing, this article directly to the implementation code, the need for friends can refer to the

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20-21

Cat ipcalc.sh #!/bin/bash ip=$1 If [-Z $IP] then echo-e "e[31;42m sh ipcalc.sh IP e[0m" Exit fi while read MASK do min= '/usr/bin/ipcalc $MASK |awk '/hostmin:/{print $} ' max= '/usr/bin/ipcalc $MASK |awk '/hostmax:/{print $} ' min= ' echo $ Min|awk-f "." ' {printf '%.0fn ', $1*256*256*256+$2*256*256+$3*256+$4} ' max= ' echo $max |awk-f. ' ' {printf '%.0fn ', $1*256*256*256+$2*256*256+$3*256+$4} ' ipvalue= ' echo $IP |awk-f. ' ' {printf '%.0fn ', $1*256*256*256+$2*256*256+$3*256+$4} ' if [' $IPvalue '-gt ' $MIN '] && [' $IPvalue '-lt ' $MAX '] t Hen echo-e "e[31;42m $IP in Ipset $MASK e[0m" Exit fi done<ipset.conf

ipset.conf format

?

1 2 3 4 5 6 7 8

More ipset.conf 58.24.64.0/18 58.24.0.0/18 58.24.128.0/18 58.24.192.0/18 58.25.128.0/18 58.25.192.0/18 64.254.111.0/24

Run SH ipcalc.sh IP address

Less efficient hey, next time, try Perl.

/usr/bin/ipcalc This is not a system-led command is a Perl version of the