To determine whether a Linux laptop has connected to a wireless network and obtained a valid IP address, you can use the following command:
```shell
ip addr show <interface_name>
```
Here, `<interface_name>` refers to the name of the wireless network interface on your Linux laptop. Common interface names include `wlan0`, `wlan1`, `wlp2s0`, etc. You can find the exact name of your wireless interface by running the command `ip link show`.
Upon executing the `ip addr show` command, you will see the information related to the specified network interface. Look for the line starting with `inet` or `inet6` which denotes the IP address assigned to the interface. If you see an IP address corresponding to your new wireless network, it means your laptop has connected successfully.
You might observe IPv4 and IPv6 addresses associated with the interface. IPv4 addresses are usually in the format `xxx.xxx.xxx.xxx`, and IPv6 addresses are longer alphanumeric strings.
Additionally, pay attention to the line starting with `state`. It should indicate `UP` or `DOWN`. If it says `UP`, it shows that the wireless interface is active and connected, while `DOWN` denotes that the interface is inactive.
Overall, by examining the output of the `ip addr show` command, you can verify whether your Linux laptop has successfully connected to the wireless network and obtained a valid IP address.
You have just set up a new wireless network at your house, and you want to determine whether your Linux laptop has connected to it and obtained a valid IP address. What command will give you the information you need? explain in depth
1 answer