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Use awk to change an IP format


 
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# 1  
Use awk to change an IP format

Basically I am trying to run a standard output of IP address with a port number into another command but I need to change it from.

74.125.224.194.80 into 74.125.224.194:80

One command wants a period before the port the subsequent one wants a colon.

So is there anyway I can feed 74.125.224.194.80 into awk and have it just substitute a : in for the 4th period it finds?

I can find all kinds of ways to do global substitutions but I don't need all periods to have a : just the last one.

Thanks in advance!
# 2  
Code:
echo 74.125.224.194.80 | awk -F"." 'NF==5{v=$NF;sub(/\.[0-9]+$/,":"v)}1'

This User Gave Thanks to Yoda For This Post:
# 3  
It would be easier to use sed:
Code:
sed 's/\./:/4'

Regards,
Alister
This User Gave Thanks to alister For This Post:
# 4  
Awesomeness thanks! works like a charm
 

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