diff --git a/bb64.cpp b/bb64.cpp
index 7abd5bd..74b78cb 100644
--- a/bb64.cpp
+++ b/bb64.cpp
@@ -4,14 +4,16 @@
 #include <unistd.h>
 #include <cstring>
 #include <sstream>
-
+#include <filesystem>
 #include "version.h"
 #include "b64ed.hpp"
 
 // Recursively decode and print if nested bb64 command is found
 void recursive_print(const std::string &decoded)
 {
+    std::cout << std::string(80, '-') << std::endl;
     std::cout << decoded << std::endl;
+    std::cout << std::string(80, '-') << std::endl;
 
     size_t pos = decoded.find("bb64 ");
     if (pos != std::string::npos)
@@ -34,6 +36,33 @@ constexpr unsigned int hash(const char *s, int off = 0)
     return !s[off] ? 5381 : (hash(s, off + 1) * 33) ^ s[off];
 }
 
+int update_bb64()
+{
+    std::cout << "Updating bb64..." << std::endl;
+
+    // determine path to this executable
+    std::filesystem::path bb64_path = std::filesystem::canonical("/proc/self/exe");
+    std::cout << "bb64 path: " << bb64_path << std::endl;
+
+    return 0;
+}
+
+int decode_and_run(const std::string &encoded)
+{
+    // Default: decode and run
+    std::string decoded = base64_decode(encoded);
+    if (decoded.empty())
+    {
+        std::cerr << "Failed to decode base64 command." << std::endl;
+        return -1;
+    }
+    // Replace current process with bash -c "decoded"
+    execlp("bash", "bash", "-c", decoded.c_str(), (char *)nullptr);
+    // If execlp returns, there was an error
+    std::cerr << "Failed to execute command." << std::endl;
+    return -1;
+}
+
 int main(int argc, char *argv[])
 {
     if (argc < 2)
@@ -46,34 +75,30 @@ Usage:
     bb64 BASE64COMMAND          Decodes and runs the command
     bb64 -[i|d] BASE64COMMAND   Displays the decoded command
     bb64 -e COMMAND             Encodes the command and prints the result
+    bb64 -u                     Updates bb64 to the latest version (may require sudo)
 
 )" << std::endl;
         return -1;
     }
 
+    std::string mode = argv[1];
+
     if (argc == 2)
     {
-        // Default: decode and run
-        std::string decoded = base64_decode(argv[1]);
-        if (decoded.empty())
-        {
-            std::cerr << "Failed to decode base64 command." << std::endl;
-            return -1;
-        }
-        // Replace current process with bash -c "decoded"
-        execlp("bash", "bash", "-c", decoded.c_str(), (char *)nullptr);
-        // If execlp returns, there was an error
-        std::cerr << "Failed to execute command." << std::endl;
-        return -1;
+        if (mode == "-u")
+            return update_bb64();
+        else
+            return decode_and_run(mode);
     }
 
-    std::string mode = argv[1];
     std::ostringstream oss;
 
     switch (hash(mode.c_str()))
     {
     case hash("-i"):
     case hash("-d"):
+        std::cout << "Decoding command..." << std::endl
+                  << std::endl;
         recursive_print(base64_decode(argv[2]));
         break;
     case hash("-e"):
diff --git a/version.h b/version.h
index 4e79690..b42491c 100644
--- a/version.h
+++ b/version.h
@@ -1 +1 @@
-static const char *VERSION = "8";
+static const char *VERSION = "10";