diff --git a/templates/docs/signalling_failures.html b/templates/docs/signalling_failures.html
index 1855ae93..3ab67715 100644
--- a/templates/docs/signalling_failures.html
+++ b/templates/docs/signalling_failures.html
@@ -3,6 +3,20 @@
 Requesting the <code>/fail</code> URL will immediately mark the check as "down".
 You can use this feature to minimize the delay from your monitored service failing
 to you getting a notification.</p>
+<h2>Shell Scripts</h2>
+<p>The below shell script sends sends either a "success" or "failure" ping depending on
+command's (certbot in this example) exit code:</p>
+<div class="highlight"><pre><span></span><span class="ch">#!/bin/sh</span>
+
+<span class="nv">url</span><span class="o">=</span>PING_URL
+
+/usr/bin/certbot renew
+
+<span class="k">if</span> <span class="o">[</span> <span class="nv">$?</span> -ne <span class="m">0</span> <span class="o">]</span><span class="p">;</span> <span class="k">then</span> <span class="nv">url</span><span class="o">=</span><span class="nv">$url</span>/fail<span class="p">;</span> <span class="k">fi</span>
+curl --retry <span class="m">3</span> <span class="nv">$url</span>
+</pre></div>
+
+
 <h2>Python</h2>
 <p>Below is a skeleton code example in Python which signals a failure when the
 work function returns an unexpected value or throws an exception:</p>
diff --git a/templates/docs/signalling_failures.md b/templates/docs/signalling_failures.md
index 45e2b0dd..b4bda2bc 100644
--- a/templates/docs/signalling_failures.md
+++ b/templates/docs/signalling_failures.md
@@ -5,6 +5,22 @@ Requesting the `/fail` URL will immediately mark the check as "down".
 You can use this feature to minimize the delay from your monitored service failing
 to you getting a notification.
 
+## Shell Scripts
+
+The below shell script sends sends either a "success" or "failure" ping depending on
+command's (certbot in this example) exit code:
+
+```bash
+#!/bin/sh
+
+url=PING_URL
+
+/usr/bin/certbot renew
+
+if [ $? -ne 0 ]; then url=$url/fail; fi
+curl --retry 3 $url
+```
+
 ## Python
 
 Below is a skeleton code example in Python which signals a failure when the