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I have an input file that contains a list of ip addresses and the ip_counts(some parameter that I use internally.)The file looks somewhat like this.
202.124.127.26 2135869
202.124.127.25 2111217
202.124.127.17 2058082
202.124.127.16 2014958
202.124.127.20 1949323
202.124.127.24 1933773
202.124.127.27 1932076
202.124.127.22 1886466
202.124.127.18 1882955
202.124.127.21 1803528
202.124.127.23 1786348
119.224.129.200 1776592
119.224.129.211 1639325
202.124.127.19 1479198
119.224.129.201 1145426
202.49.175.110 1133354
119.224.129.210 1119525
68.232.45.132 1085491
119.224.129.209 1015078
131.203.3.8 857951
202.162.73.4 817197
207.123.58.125 785326
202.7.6.18 762603
117.121.253.254 718022
74.125.237.120 710448
68.232.44.219 693002
202.162.73.2 671559
205.128.75.126 611301
119.161.91.17 604393
119.224.129.202 559930
8.27.241.126 528862
74.125.237.152 517516
8.254.9.254 514341
As you can see the ip addresses themselves are unsorted.So I use the sort command on the file to sort the ip addresses as below
cat address_count.txt | sort -t . -k 1,1n -k 2,2n -k 3,3n -k 4,4n > sorted_address.txt
Which gives me an output with ip addresses in the sorted order.The partial output of that file is shown below.
4.23.63.126 15731
4.26.254.254 320705
4.27.8.254 25174
8.12.129.50 176141
8.12.223.125 11800
8.19.32.65 15854
8.19.240.53 11013
8.19.240.70 11915
8.19.240.72 31541
8.19.240.73 23304
8.20.213.28 96434
8.20.213.32 108191
8.20.213.34 170058
8.20.213.39 23512
8.20.213.41 10420
8.20.213.61 24809
8.26.195.253 28568
8.27.152.253 104446
8.27.233.125 115856
8.27.235.126 16102
8.27.235.254 25628
8.27.238.254 108485
8.27.240.125 169262
8.27.241.126 528862
8.27.241.252 197302
8.27.248.125 14926
8.254.9.254 514341
12.129.210.71 89663
15.192.45.21 20139
15.192.45.26 35265
15.193.0.148 10313
15.193.113.29 40318
15.201.49.136 14243
15.240.238.52 57163
17.250.248.95 28166
23.33.125.13 19179
23.33.125.37 17953
31.151.163.60 72709
38.99.42.37 192356
38.99.68.180 41251
38.99.68.181 10272
38.104.237.74 74012
38.108.112.103 37034
38.108.112.115 69698
38.108.112.121 92173
38.108.112.122 99230
38.112.63.238 39958
38.119.130.62 42159
46.4.28.22 19769
Now I want to parse the file given above and convert it to aaa.bbb.ccc.0/8 format and aaa.bbb.0.0/16 format and I also want to count the number of occurences of the ip's in each subnet.I want to do this using bash.I am open to using sed or awk.How do I achieve this.
For example
8.19.240.53 11013
8.19.240.70 11915
8.19.240.72 31541
8.19.240.73 23304
8.20.213.28 96434
8.20.213.32 108191
8.20.213.34 170058
8.20.213.39 23512
8.20.213.41 10420
8.20.213.61 24809
The about input portion should produce 8.19.240.0/8 and 8.20.213.0/8 and similarly for /16 domains.I also want to count the occurences of machines in the subnet. For example In the above output this subnet should have the count 4 in the next column beside it.It should also add the already displayed count.i.e (11013 + 11915 + 31541 + 23304) in another column.
8.19.240.0/8 4 (11013 + 11915 + 31541 + 23304) 8.20.213.0/8 6 (96434 + 108191 + 170058 + 23512 + 10420 + 24809)
It would be great if someone could suggest some way to achieve this.
liv2hak
Posted 2012-06-09T05:03:50.930
Reputation: 496
Are you sure you want 8.19.240.0/8; I suspect you mean 8.19.240.0/24, as the prefix length (the number after the /) refers to the number of bits that may be set, not the number of bits that are zeroed out. – chepner – 2012-06-09T13:05:40.223