feat : create , write something and define permission

Author: TaiChi112

Linux/Permissions/main.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func main() {
+	// Declare variable of type os.File and Create file test.txt
+	file, err := os.Create("test.txt")
+	//handle checking error
+	if err != nil {
+		//display if having error
+		fmt.Println("Error creating file : ", err)
+	}
+	// closing file after use
+	defer file.Close()
+
+	// write to file
+	_, err = file.WriteString("Testing I can write to this file")
+	//handle checking error
+	if err != nil {
+		fmt.Println("Error writing to file : ", err)
+		return
+	}
+
+	//define permissions
+	err = os.Chmod("test.txt", 0644)
+	//handle checking error
+	if err != nil {
+		fmt.Println("Error changing file permissions :", err)
+		return
+	}
+
+	// When everything is ok
+	fmt.Println("File created and permissions successfully")
+}