golang net delete network card

In Golang, we can use the net package to interact with the network. Although the net package provides a variety of functions, in some cases, we need to delete the existing network card. This article will introduce how to use the net package to delete the network card in Golang.

First, we need to import the net package and obtain the network interface information. The specific code is as follows:

package main

import (
    "fmt"
    "net"
)

func main() {
    interfaces, err := net.Interfaces()
    if err != nil {
        panic(err)
    }
    fmt.Println(interfaces)
}

In the above code, we use net.Interfaces() to obtain the information of all network interfaces and print it out. Next, we need to find the network card we want to remove. We can find the network card that needs to be deleted by traversing the network interface information. The sample code is as follows:

package main

import (
    "fmt"
    "net"
)

func main() {
    interfaces, err := net.Interfaces()
    if err != nil {
        panic(err)
    }

    for _, iface := range interfaces {
        if iface.Name == "en0" {
            fmt.Println("Found interface:", iface.Name)
        }
    }
}

In the above code, we traverse all the network interface information and determine whether the network card that needs to be deleted is found through the if statement. Suppose we want to delete the en0 network card, we can find this network card and print it out.

Now, we have found the network card to be deleted. Next, we need to use the netlink package to remove this network card. The specific code is as follows:

package main

import (
    "fmt"

    "github.com/vishvananda/netlink"
)

func main() {
    en0, err := netlink.LinkByName("en0")
    if err != nil {
        panic(err)
    }

    err = netlink.LinkDel(en0)
    if err != nil {
        panic(err)
    }

    fmt.Println("Interface", en0.Attrs().Name, "deleted")
}

In the above code, we use netlink.LinkByName() to find the network card to be deleted, and use netlink.LinkDel() to delete it delete. Finally, we print out the successful deletion information.

It should be noted that we need to import the github.com/vishvananda/netlink package to use the netlink function.

In short, deleting the network card in Golang requires the following steps:

1. Import the net and netlink packages;
2. Use net.Interfaces() to obtain all network interface information;
3. Traverse all network interface information and find the network card that needs to be deleted;
4. Use netlink .LinkByName()Find the network card to be deleted;
5. Use netlink.LinkDel() to delete the network card.

I hope this article can help readers successfully delete the network card in Golang.

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