package main import ( "fmt" "os/exec" ) func main() { cmd := exec.Command("ls", "-l") output, err := cmd.Output() if err != nil { fmt.Println("Error:", err) return } fmt.Println(string(output)) }In this example, we are executing the `ls -l` command using the `exec.Command` function. The output of the command is stored in the `output` variable which is then printed to the console. This package belongs to the standard library of Go.