echo_GoCourseDay1PDF.go

// A version of echo - go/docs/GoCourseDay1.pdf slide 59

package main

import (
        "fmt"
        "os"
)

func main() {
        if len(os.Args) < 2 { //length of array
                os.Exit(1)
        }
        for i := 1; i < len(os.Args); i++ {
                fmt.Printf("arg %d: %s\n", i, os.Args[i])
        }
} // falling off end == os.Exit()