How to get ip address in shell script

A Few years back, ifconfig was the favorite way to know IP address in Linux. Unfortunately, ifconfig command has been deprecated.

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Linux ip address command

If you try to use this command today, you are most likely to see the following error:

You may wonder how do I find my IP in Linux then? Let me show you that.

Find IP address in Linux command line

Well, you can use the ip command for this purpose.

ip command is versatile and can be used for several other things related to networking.

But just to show the IP address, use the command with ip addr, ip a or ip address options (all are the same) in the following manner:

And you will see an output like this:

In the above output, you can ignore the first one called lo (loopback).

You can see that the IP address is displayed 192.168.1.20.

How to get ip address from hostname

The 24 that follows it is the subnet mask.

That’s it. That’s how you display the IP address of host system in Linux command line. You can use the same command to get the IP address via bash scripts as well.

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