Use awk to change an IP format

MrEddy · #1 02-08-2013

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!

Yoda · #2 02-08-2013

Code:

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

alister · #3 02-08-2013

It would be easier to use sed:

Code:

sed 's/\./:/4'

MrEddy · #4 02-08-2013

Awesomeness thanks! works like a charm

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The Following User Says Thank You to Yoda For This Useful Post:
MrEddy (02-08-2013)

The Following User Says Thank You to alister For This Useful Post:
MrEddy (02-08-2013)