Clearing the Terminal Screen in Go: Native or External Tools
When running Go scripts, clearing the terminal screen can be a practical operation. While there are no built-in Go methods for this task, you can utilize external libraries or define your own custom solutions.
Using External Libraries
The os/exec package provides a means to execute external commands. By leveraging this package, you can use operating system-specific commands to clear the screen. The approach varies depending on the platform:
- Linux: exec.Command("clear")
- Windows: exec.Command("cmd", "/c", "cls")
Rolling Your Own Solution
If you prefer a more customized approach, you can define a clear function for each supported operating system. The runtime.GOOS constant can help you determine the platform and execute the appropriate command.
package main import ( "fmt" "os" "os/exec" "runtime" "time" ) var clear map[string]func() func init() { clear = make(map[string]func()) clear["linux"] = func() { cmd := exec.Command("clear") cmd.Stdout = os.Stdout cmd.Run() } clear["windows"] = func() { cmd := exec.Command("cmd", "/c", "cls") cmd.Stdout = os.Stdout cmd.Run() } } func CallClear() { value, ok := clear[runtime.GOOS] if ok { value() } else { panic("Your platform is unsupported! I can't clear terminal screen :(") } } func main() { fmt.Println("I will clean the screen in 2 seconds!") time.Sleep(2 * time.Second) CallClear() fmt.Println("I'm alone...") }
Note: Using external commands to clear the screen can have security implications. Consider the other methods discussed in this thread as well.
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