diff -up coreutils-8.17/src/md5sum.c.prefix coreutils-8.17/src/md5sum.c
--- coreutils-8.17/src/md5sum.c.prefix	2012-07-24 11:25:07.132521741 +0200
+++ coreutils-8.17/src/md5sum.c	2012-07-26 12:57:08.173864973 +0200
@@ -48,6 +48,7 @@
 # define DIGEST_BITS 128
 # define DIGEST_REFERENCE "RFC 1321"
 # define DIGEST_ALIGN 4
+# define PREFIX_INDEX 0
 #elif HASH_ALGO_SHA1
 # define PROGRAM_NAME "sha1sum"
 # define DIGEST_TYPE_STRING "SHA1"
@@ -55,6 +56,7 @@
 # define DIGEST_BITS 160
 # define DIGEST_REFERENCE "FIPS-180-1"
 # define DIGEST_ALIGN 4
+# define PREFIX_INDEX 1
 #elif HASH_ALGO_SHA256
 # define PROGRAM_NAME "sha256sum"
 # define DIGEST_TYPE_STRING "SHA256"
@@ -62,6 +64,7 @@
 # define DIGEST_BITS 256
 # define DIGEST_REFERENCE "FIPS-180-2"
 # define DIGEST_ALIGN 4
+# define PREFIX_INDEX 2
 #elif HASH_ALGO_SHA224
 # define PROGRAM_NAME "sha224sum"
 # define DIGEST_TYPE_STRING "SHA224"
@@ -69,6 +72,7 @@
 # define DIGEST_BITS 224
 # define DIGEST_REFERENCE "RFC 3874"
 # define DIGEST_ALIGN 4
+# define PREFIX_INDEX 3
 #elif HASH_ALGO_SHA512
 # define PROGRAM_NAME "sha512sum"
 # define DIGEST_TYPE_STRING "SHA512"
@@ -76,6 +80,7 @@
 # define DIGEST_BITS 512
 # define DIGEST_REFERENCE "FIPS-180-2"
 # define DIGEST_ALIGN 8
+# define PREFIX_INDEX 4
 #elif HASH_ALGO_SHA384
 # define PROGRAM_NAME "sha384sum"
 # define DIGEST_TYPE_STRING "SHA384"
@@ -83,6 +88,7 @@
 # define DIGEST_BITS 384
 # define DIGEST_REFERENCE "FIPS-180-2"
 # define DIGEST_ALIGN 8
+# define PREFIX_INDEX 5
 #else
 # error "Can't decide which hash algorithm to compile."
 #endif
@@ -135,7 +141,8 @@ enum
 {
   STATUS_OPTION = CHAR_MAX + 1,
   QUIET_OPTION,
-  STRICT_OPTION
+  STRICT_OPTION,
+  TAG_OPTION
 };
 
 static struct option const long_options[] =
@@ -147,11 +154,23 @@ static struct option const long_options[
   { "text", no_argument, NULL, 't' },
   { "warn", no_argument, NULL, 'w' },
   { "strict", no_argument, NULL, STRICT_OPTION },
+  { "tag", no_argument, NULL, TAG_OPTION },
   { GETOPT_HELP_OPTION_DECL },
   { GETOPT_VERSION_OPTION_DECL },
   { NULL, 0, NULL, 0 }
 };
 
+static const char *const prefixes[] =
+{
+  "MD5 ",
+  "SHA1 ",
+  "SHA256 ",
+  "SHA224 ",
+  "SHA512 ",
+  "SHA384 "
+};
+     
+
 void
 usage (int status)
 {
@@ -636,6 +655,42 @@ digest_check (const char *checkfile_name
           && (!strict || n_improperly_formatted_lines == 0));
 }
 
+static void 
+print_filename(char *file)
+{
+  size_t i;
+  /* Translate each NEWLINE byte to the string, "\\n",
+     and each backslash to "\\\\".  */
+  for (i = 0; i < strlen (file); ++i)
+    {
+      switch (file[i])
+        {
+        case '\n':
+          fputs ("\\n", stdout);
+          break;
+
+        case '\\':
+          fputs ("\\\\", stdout);
+          break;
+
+        default:
+          putchar (file[i]);
+          break;
+        }
+    }
+}
+
+static void 
+bsd_print_filename(char *file)
+{
+  size_t i;
+
+  for (i = 0; i < strlen (file); ++i)
+    {
+      putchar(file[i]);
+    }
+}
+
 int
 main (int argc, char **argv)
 {
@@ -646,6 +701,7 @@ main (int argc, char **argv)
   int opt;
   bool ok = true;
   int binary = -1;
+  bool prefix_tag = false;
 
   /* Setting values of global variables.  */
   initialize_main (&argc, &argv);
@@ -660,7 +716,7 @@ main (int argc, char **argv)
      so that processes running in parallel do not intersperse their output.  */
   setvbuf (stdout, NULL, _IOLBF, 0);
 
-  while ((opt = getopt_long (argc, argv, "bctw", long_options, NULL)) != -1)
+  while ((opt = getopt_long (argc, argv, "bctwl", long_options, NULL)) != -1)
     switch (opt)
       {
       case 'b':
@@ -690,6 +746,9 @@ main (int argc, char **argv)
       case STRICT_OPTION:
         strict = true;
         break;
+      case TAG_OPTION:
+        prefix_tag = true;
+        break;
       case_GETOPT_HELP_CHAR;
       case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
       default:
@@ -754,41 +813,38 @@ main (int argc, char **argv)
             ok = false;
           else
             {
+              if (prefix_tag)
+                {
+                  if(!file_is_binary)
+                    putchar(' ');
+                  printf("%s", prefixes[PREFIX_INDEX]);
+                  putchar('(');
+                  bsd_print_filename(file);
+                  printf(") = ");
+                }
+
               size_t i;
 
               /* Output a leading backslash if the file name contains
                  a newline or backslash.  */
-              if (strchr (file, '\n') || strchr (file, '\\'))
+              if ((strchr (file, '\n') || strchr (file, '\\')) && !prefix_tag)
                 putchar ('\\');
 
               for (i = 0; i < (digest_hex_bytes / 2); ++i)
                 printf ("%02x", bin_buffer[i]);
 
-              putchar (' ');
-              if (file_is_binary)
-                putchar ('*');
-              else
-                putchar (' ');
-
-              /* Translate each NEWLINE byte to the string, "\\n",
-                 and each backslash to "\\\\".  */
-              for (i = 0; i < strlen (file); ++i)
+              if (!prefix_tag)
                 {
-                  switch (file[i])
-                    {
-                    case '\n':
-                      fputs ("\\n", stdout);
-                      break;
-
-                    case '\\':
-                      fputs ("\\\\", stdout);
-                      break;
-
-                    default:
-                      putchar (file[i]);
-                      break;
-                    }
+                  putchar (' ');
+
+                  if (file_is_binary)
+                    putchar ('*');
+                  else
+                    putchar (' ');
+
+                  print_filename(file);
                 }
+
               putchar ('\n');
             }
         }