How to get the parent process ID (PPID) of the current process using syscall in Golang?

To get the parent process ID (PPID) of the current process in Golang, you can use the syscall package to invoke the getppid syscall. Here's an example:

package main

import (
    "fmt"
    "syscall"
)

func main() {
    ppid := syscall.Getppid()
    fmt.Printf("Parent Process ID (PPID): %v\n", ppid)
}

In the above code, syscall.Getppid() is used to retrieve the PPID of the current process. The fmt.Printf function is then used to print the PPID to the console.

To run this code, you can save it in a file (e.g., main.go) and then execute it:

$ go run main.go

This will output the PPID of the current process.