Initial commit

06-variables/06-project-greeter/01-demonstration/main.go

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+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+// NOTE: RUN THIS WITH 3 ARGUMENTS AT LEAST
+//       OR, THERE WILL BE AN ERROR
+
+func main() {
+	fmt.Printf("%#v\n", os.Args)
+
+	// Gets an item from the os.Args string slice:
+	//     os.Args[INDEX]
+	// INDEX can be 0 or greater
+	fmt.Println("Path:", os.Args[0])
+	fmt.Println("1st argument:", os.Args[1])
+	fmt.Println("2nd argument:", os.Args[2])
+	fmt.Println("3rd argument:", os.Args[3])
+
+	// `len` function can find how many items
+	// inside a slice value
+	fmt.Println("Items inside os.Args:", len(os.Args))
+}