Developing a simple TCP client

In this section, we will develop a TCP client named TCPclient.go. The port number the client will try to connect to as well as the server address will be given as command-line arguments to the program. The Go code of the TCP client will be presented in five parts; the first part is the following:

package main 
 
import ( 
   "bufio" 
   "fmt" 
   "net" 
   "os" 
   "strings" 
) 

The second part of TCPclient.go is the following:

func main() { 
   arguments := os.Args 
   if len(arguments) == 1 { 
         fmt.Println("Please provide host:port.") 
         os.Exit(100) 
   } 

The third part of TCPclient.go has the following Go code:

   CONNECT := arguments[1] 
   c, err := net.Dial("tcp", CONNECT) 
   if err != nil { 
         fmt.Println(err) 
         os.Exit(100) 
   } 

Once again...