0utput IP to a file

[NetRock]

Hi ALL

have a file (called it A) contains;

hostname 192.168.23.65
hostname 10.18.13.253
hostname 10.18.16.253
hostname 177.23.56.58


how can i write a script to get only ip addresses & send it to 3 files with the following info. only:

file1:
192.168.0.0

file2:
10.18.0.0

file3:
177.23.0.0

by creating the 3 files then i will be able to set up subnetmask, gw,....etc.
Thank you in advance.

[nmset]

awk '{print $2}' /var/tmp/ip.txt | awk -F "." '{print $1"."$2"."0"."0}' | sort -u

This script doesn't produce your separate files. It constructs your unique netmasks, which you can redirect to a single file, then read each line and further redirect to separate files.

[NetRock]

Thanks NMSET. i will do that.