2 files changed, 23 insertions, 0 deletions
diff --git a/src/main.go b/src/main.go
new file mode 100644
index 0000000..d3c7f21
--- /dev/null
+++ b/src/main.go
@@ -0,0 +1,7 @@
+package main
+
+import "uuid"
+
+func main() {
+	uuid.Main()
+}
diff --git a/src/uuid.go b/src/uuid.go
index 8b953f8..6c4b8f6 100644
--- a/src/uuid.go
+++ b/src/uuid.go
@@ -4,7 +4,9 @@ import (
 	"crypto/rand"
 	"encoding/hex"
 	"errors"
+	"fmt"
 	"io"
+	"os"
 	"strings"
 )
 
@@ -100,3 +102,17 @@ func FromString(str string) (UUID, error) {
 
 	return [ByteCount]byte(data), nil
 }
+
+
+
+func Main() {
+	if len(os.Args) < 2 {
+		fmt.Println(New().String())
+	} else {
+		_, err := FromString(strings.TrimSpace(os.Args[1]))
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+			os.Exit(3)
+		}
+	}
+}