Improve tac and add sudo and suid

_gtfobins/tac.md

@@ -1,8 +1,16 @@
 ---
+description: Make sure that `RANDOM` does not appear into the file to read otherwise the content of the file is corrupted by reversing the order of `RANDOM`-separated chunks.
 functions:
   file-read:
-    - description: It reads data from files, it may be used to do privileged reads or disclose files outside a restricted file system.
-      code: |
+    - code: |
         LFILE=file_to_read
-        tac "$LFILE"
+        tac -s 'RANDOM' "$LFILE"
+  suid:
+    - code: |
+        LFILE=file_to_read
+        ./tac -s 'RANDOM' "$LFILE"
+  sudo:
+    - code: |
+        LFILE=file_to_read
+        sudo tac -s 'RANDOM' "$LFILE"
 ---