github.com/giovannyortegon/go@v0.0.0-20220115155912-8890063f5bdd/MasterGO/Chap01-GO-OS/stdERR.go (about)

     1  package main
     2  
     3  import (
     4  	_ "fmt"
     5  	"io"
     6  	"os"
     7  )
     8  
     9  func main() {
    10  
    11  	myString := ""
    12  	arguments := os.Args
    13  
    14  	if len(arguments) == 1 {
    15  		myString = "Please give me one argument!"
    16  	} else {
    17  		myString = arguments[1]
    18  	}
    19  
    20  	io.WriteString(os.Stdout, "This is Standard output\n")
    21  	io.WriteString(os.Stderr, myString)
    22  	io.WriteString(os.Stderr, "\n")
    23  }