diff --git a/main.go b/main.go
deleted file mode 100644
index 9fe5ace..0000000
--- a/main.go
+++ /dev/null
@@ -1,170 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"encoding/hex"
-	"flag"
-	"fmt"
-	"golang.org/x/crypto/sha3"
-	"hash"
-	"io"
-	"log"
-	"os"
-	"path/filepath"
-	"strings"
-)
-
-var (
-	bits      = flag.Int("b", 224, "Bits: 224, 256, 384 and 512.")
-	check     = flag.String("c", "", "Check hashsum file.")
-	recursive = flag.Bool("r", false, "Process directories recursively.")
-	target    = flag.String("t", "", "Target file/wildcard to generate hashsum list.")
-	verbose   = flag.Bool("v", false, "Verbose mode. (The exit code is always 0 in this mode)")
-)
-
-func main() {
-	flag.Parse()
-
-	if (len(os.Args) < 2) || (*bits != 224 && *bits != 256 && *bits != 384 && *bits != 512) {
-		fmt.Println("SHA3 Hashsum Tool - ALBANESE Lab (c) 2020-2021\n")
-		fmt.Println("Usage of", os.Args[0]+":")
-		fmt.Printf("%s [-v] [-b N] [-c <hash.ext>] [-r] -t <file.ext>\n\n", os.Args[0])
-		flag.PrintDefaults()
-		os.Exit(1)
-	}
-
-	if *target != "" && *recursive == false {
-		files, err := filepath.Glob(*target)
-		if err != nil {
-			log.Fatal(err)
-		}
-		for _, match := range files {
-			var h hash.Hash
-			if *bits == 224 {
-				h = sha3.New224()
-			} else if *bits == 256 {
-				h = sha3.New256()
-			} else if *bits == 384 {
-				h = sha3.New384()
-			} else if *bits == 512 {
-				h = sha3.New512()
-			}
-			f, err := os.Open(match)
-			if err != nil {
-				log.Fatal(err)
-			}
-			file, err := os.Stat(match)
-			if file.IsDir() {
-			} else {
-				if _, err := io.Copy(h, f); err != nil {
-					log.Fatal(err)
-				}
-				fmt.Println(hex.EncodeToString(h.Sum(nil)), "*"+f.Name())
-			}
-			f.Close()
-		}
-	}
-
-	if *target != "" && *recursive == true && *bits == 224 {
-		err := filepath.Walk(filepath.Dir(*target),
-			func(path string, info os.FileInfo, err error) error {
-				if err != nil {
-					return err
-				}
-				file, err := os.Stat(path)
-				if file.IsDir() {
-				} else {
-					filename := filepath.Base(path)
-					pattern := filepath.Base(*target)
-					matched, err := filepath.Match(pattern, filename)
-					if err != nil {
-						fmt.Println(err)
-					}
-					if matched {
-						var h hash.Hash
-						if *bits == 224 {
-							h = sha3.New224()
-						} else if *bits == 256 {
-							h = sha3.New256()
-						} else if *bits == 384 {
-							h = sha3.New384()
-						} else if *bits == 512 {
-							h = sha3.New512()
-						}
-						f, err := os.Open(path)
-						if err != nil {
-							log.Fatal(err)
-						}
-						if _, err := io.Copy(h, f); err != nil {
-							log.Fatal(err)
-						}
-						f.Close()
-						fmt.Println(hex.EncodeToString(h.Sum(nil)), "*"+f.Name())
-					}
-				}
-				return nil
-			})
-		if err != nil {
-			log.Println(err)
-		}
-	}
-
-	if *check != "" {
-		file, err := os.Open(*check)
-
-		if err != nil {
-			log.Fatalf("failed opening file: %s", err)
-		}
-		scanner := bufio.NewScanner(file)
-		scanner.Split(bufio.ScanLines)
-		var txtlines []string
-
-		for scanner.Scan() {
-			txtlines = append(txtlines, scanner.Text())
-		}
-		file.Close()
-		for _, eachline := range txtlines {
-			lines := strings.Split(string(eachline), " *")
-			if strings.Contains(string(eachline), " *") {
-				var h hash.Hash
-				if *bits == 224 {
-					h = sha3.New224()
-				} else if *bits == 256 {
-					h = sha3.New256()
-				} else if *bits == 384 {
-					h = sha3.New384()
-				} else if *bits == 512 {
-					h = sha3.New512()
-				}
-				_, err := os.Stat(lines[1])
-				if err == nil {
-					f, err := os.Open(lines[1])
-					if err != nil {
-						log.Fatal(err)
-					}
-					io.Copy(h, f)
-					f.Close()
-
-					if *verbose {
-						if hex.EncodeToString(h.Sum(nil)) == lines[0] {
-							fmt.Println(lines[1]+"\t", "OK")
-						} else {
-							fmt.Println(lines[1]+"\t", "FAILED")
-						}
-					} else {
-						if hex.EncodeToString(h.Sum(nil)) == lines[0] {
-						} else {
-							os.Exit(1)
-						}
-					}
-				} else {
-					if *verbose {
-						fmt.Println(lines[1]+"\t", "Not found!")
-					} else {
-						os.Exit(1)
-					}
-				}
-			}
-		}
-	}
-}