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Grep IP address form a text file along with the subnet

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# 1  
Old 04-09-2013
Grep IP address form a text file along with the subnet
I have an input file:

Code:
class 1 3 5 10.10.10..0/23 hicks jimmy
class 3 10.12.10.0/22 mike
class.019283 10.10.15.10/20 henry
gym.847585 45 192.168.10.0/22 nancy jim steve maya

The output should look like this:

Code:
10.10.10..0/23
10.12.10.0/22
10.10.15.10/20
192.168.10.0/22

I have the following but it only prints the ip address
Code:
perl -lne 'print $& if /(\d+\.){3}\d+/'  file

Regards,
# 2  
Old 04-09-2013
Code:
egrep -o '[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+/[0-9]+' inputfile

# 3  
Old 04-09-2013
I see two periods . in your first line, not sure if that is valid:
Code:
10.10.10..0/23
10.12.10.0/22
10.10.15.10/20
192.168.10.0/22

But if that is valid and if you really want that in output:
Code:
awk '{match($0, /[0-9]+\.[0-9]+\.[0-9]+\.*[0-9]+\/[0-9]+/); print substr($0, RSTART, RLENGTH)}' file

Use /usr/xpg4/bin/awk or nawk in Solaris.
# 4  
Old 04-09-2013
The code does work in Solaris. -o option

---------- Post updated at 11:41 AM ---------- Previous update was at 11:32 AM ----------

The second period is a typo. sorry

---------- Post updated at 11:42 AM ---------- Previous update was at 11:41 AM ----------

Thank you. it works
This User Gave Thanks to e_mikey_2000 For This Post:
Corona688
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