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Bash | How to show the external IP of your server

When I was deploying a new instance on Google Cloud Platform, I often forgot the IP of it. Usually, I have to go back to Google Cloud Console and find it out in the list.

For a easier management in the future, I wanna let the instance know its IP and write it down in a txt file:

curl > /usr/business/extIP

Now, each time the instance generate a daily report, it could cat /usr/business/extIP and get the IP.

Hope this helps! Cheers! 🍻

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