diff --git a/10-hpc-intro.html b/10-hpc-intro.html
index 7db0c8a..77eeff9 100644
--- a/10-hpc-intro.html
+++ b/10-hpc-intro.html
@@ -259,7 +259,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Why Use HPC?</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/10-hpc-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -515,8 +515,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/10-hpc-intro.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/10-hpc-intro.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/11-connecting.html b/11-connecting.html
index 3c469b6..4b48f77 100644
--- a/11-connecting.html
+++ b/11-connecting.html
@@ -259,7 +259,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Connecting to the remote HPC system</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/11-connecting.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -680,8 +680,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/11-connecting.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/11-connecting.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/13-navigation.html b/13-navigation.html
index fc88c05..d083017 100644
--- a/13-navigation.html
+++ b/13-navigation.html
@@ -266,7 +266,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Moving around and looking at things</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/13-navigation.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -391,7 +391,7 @@ <h3 class="callout-title">Differences between remote and local
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>You would likely see something more like this:</p>
 <div class="codewrapper">
@@ -737,7 +737,7 @@ <h3 id="absolute-vs-relative-paths">Absolute vs Relative Paths<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: <code>.</code> stands for the current directory.</li>
 <li>No: <code>/</code> stands for the root directory.</li>
@@ -777,7 +777,7 @@ <h3 class="callout-title">Relative Path Resolution<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: there <em>is</em> a directory <code>backup</code> in
 <code>/Users</code>.</li>
@@ -820,7 +820,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: <code>pwd</code> is not the name of a directory.</li>
 <li>Yes: <code>ls</code> without directory argument lists files and
@@ -852,7 +852,7 @@ <h3 class="callout-title">Exploring More<code>ls</code>Arguments<a class="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>The <code>-l</code> arguments makes <code>ls</code> use a
 <strong>l</strong>ong listing format, showing not only the
@@ -887,7 +887,7 @@ <h3 class="callout-title">Listing Recursively and By Time<a class="anchor" aria-
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>The directories are listed alphabetical at each level, the
 files/directories in each directory are sorted by time of last
@@ -978,8 +978,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/13-navigation.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/13-navigation.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/14-files.html b/14-files.html
index fdcc744..ab0853a 100644
--- a/14-files.html
+++ b/14-files.html
@@ -271,7 +271,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Working with files</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/14-files.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -846,8 +846,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/14-files.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/14-files.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/15-wildcards-pipes.html b/15-wildcards-pipes.html
index b030952..f23c9c8 100644
--- a/15-wildcards-pipes.html
+++ b/15-wildcards-pipes.html
@@ -267,7 +267,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Wildcards and pipes</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/15-wildcards-pipes.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -830,8 +830,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/15-wildcards-pipes.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/15-wildcards-pipes.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/16-scripts.html b/16-scripts.html
index a3a0eb1..0d90bc8 100644
--- a/16-scripts.html
+++ b/16-scripts.html
@@ -268,7 +268,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Scripts, variables, and loops</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/16-scripts.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -931,8 +931,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/16-scripts.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/16-scripts.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index 25cf398..b4acf48 100644
--- a/404.html
+++ b/404.html
@@ -319,8 +319,8 @@ <h1>Page not found</h1>
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/404.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/404.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 6e6f9de..7e3a4b3 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -255,7 +255,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Contributor Code of Conduct</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/CODE_OF_CONDUCT.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -340,8 +340,8 @@ <h1>Contributor Code of Conduct</h1>
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/CODE_OF_CONDUCT.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/CODE_OF_CONDUCT.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 298c5e4..e807225 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -255,7 +255,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Licenses</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/LICENSE.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -391,8 +391,8 @@ <h1>Licenses</h1>
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/LICENSE.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/LICENSE.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index 9bdfee6..0331665 100644
--- a/aio.html
+++ b/aio.html
@@ -304,7 +304,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         
 <section id="aio-10-hpc-intro"><p>Content from <a href="10-hpc-intro.html">Why Use HPC?</a></p>
 <hr>
-<p>Last updated on 2024-02-06 |
+<p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/10-hpc-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -509,7 +509,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </div>
 </div></section><section id="aio-11-connecting"><p>Content from <a href="11-connecting.html">Connecting to the remote HPC system</a></p>
 <hr>
-<p>Last updated on 2024-02-06 |
+<p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/11-connecting.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -890,7 +890,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 </div></section><section id="aio-13-navigation"><p>Content from <a href="13-navigation.html">Moving around and looking at things</a></p>
 <hr>
-<p>Last updated on 2024-02-06 |
+<p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/13-navigation.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -1015,7 +1015,7 @@ <h3 class="callout-title">Differences between remote and local
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>You would likely see something more like this:</p>
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@@ -1370,7 +1370,7 @@ <h3 id="absolute-vs-relative-paths">Absolute vs Relative Paths<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>No: <code>.</code> stands for the current directory.</li>
@@ -1415,7 +1415,7 @@ <h3 class="callout-title">Relative Path Resolution<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>No: there <em>is</em> a directory <code>backup</code> in
@@ -1462,7 +1462,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>No: <code>pwd</code> is not the name of a directory.</li>
@@ -1496,7 +1496,7 @@ <h3 class="callout-title">Exploring More<code>ls</code>Arguments<a class="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>The <code>-l</code> arguments makes <code>ls</code> use a
 <strong>l</strong>ong listing format, showing not only the
@@ -1531,7 +1531,7 @@ <h3 class="callout-title">Listing Recursively and By Time<a class="anchor" aria-
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>The directories are listed alphabetical at each level, the
 files/directories in each directory are sorted by time of last
@@ -1568,7 +1568,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
  -->
 </section></section><section id="aio-14-files"><p>Content from <a href="14-files.html">Working with files</a></p>
 <hr>
-<p>Last updated on 2024-02-06 |
+<p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/14-files.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -2109,7 +2109,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
  -->
 </section></section><section id="aio-15-wildcards-pipes"><p>Content from <a href="15-wildcards-pipes.html">Wildcards and pipes</a></p>
 <hr>
-<p>Last updated on 2024-02-06 |
+<p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/15-wildcards-pipes.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -2620,7 +2620,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
  -->
 </section></section><section id="aio-16-scripts"><p>Content from <a href="16-scripts.html">Scripts, variables, and loops</a></p>
 <hr>
-<p>Last updated on 2024-02-06 |
+<p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/16-scripts.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -3282,8 +3282,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/aio.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index f4b1596..15b0d0c 100644
--- a/images.html
+++ b/images.html
@@ -362,8 +362,8 @@ <h3 id="14-files-figure-1">Figure 1</h3>
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   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/images.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index be26624..be52b11 100644
--- a/index.html
+++ b/index.html
@@ -363,7 +363,7 @@ <h3 class="callout-title">Details<a class="anchor" aria-label="anchor" href="#de
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Computers with Windows operating systems do not automatically have a
 Unix Shell program installed. In this lesson, we encourage you to use an
@@ -426,7 +426,7 @@ <h3 class="callout-title">Alternatives to MobaXterm and Git for
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>On macOS, the default Unix Shell is accessible by running the
 Terminal program from the <code>/Application/Utilities</code> folder in
@@ -450,7 +450,7 @@ <h4 id="reference-1">Reference<a class="anchor" aria-label="anchor" href="#refer
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Linux</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>On most versions of Linux, the default Unix Shell is accessible by
 running the <a href="https://help.gnome.org/users/gnome-terminal/stable/" class="external-link">(Gnome)
@@ -493,7 +493,7 @@ <h3 class="callout-title">Details<a class="anchor" aria-label="anchor" href="#de
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Windows</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>Modern versions of Windows have SSH available in Powershell. You can
 test if it is available by typing <code>ssh --help</code> in Powershell.
@@ -512,7 +512,7 @@ <h4 class="accordion-header" id="headingSolution4">Windows</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">macOS</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>macOS comes with SSH pre-installed, so you should not need to install
 anything. Use your “Terminal” app.</p>
@@ -525,7 +525,7 @@ <h4 class="accordion-header" id="headingSolution5">macOS</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Linux</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <p>Linux users do not need to install anything, you should be set! Use
 your terminal application.</p>
@@ -686,8 +686,8 @@ <h3 id="using-an-existing-archer2-account">Using an existing ARCHER2 account<a c
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/index.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/index.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index 79cb051..7c03a14 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -360,8 +360,8 @@ <h1>Instructor Notes</h1>
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor-notes.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor-notes.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor/10-hpc-intro.html b/instructor/10-hpc-intro.html
index 291ff04..8c3d257 100644
--- a/instructor/10-hpc-intro.html
+++ b/instructor/10-hpc-intro.html
@@ -258,7 +258,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Why Use HPC?</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/10-hpc-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -516,8 +516,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/10-hpc-intro.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/10-hpc-intro.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor/11-connecting.html b/instructor/11-connecting.html
index 2265cc5..8904023 100644
--- a/instructor/11-connecting.html
+++ b/instructor/11-connecting.html
@@ -258,7 +258,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Connecting to the remote HPC system</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/11-connecting.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -681,8 +681,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/11-connecting.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/11-connecting.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor/13-navigation.html b/instructor/13-navigation.html
index 3eba325..768dd3d 100644
--- a/instructor/13-navigation.html
+++ b/instructor/13-navigation.html
@@ -265,7 +265,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Moving around and looking at things</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/13-navigation.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -392,7 +392,7 @@ <h3 class="callout-title">Differences between remote and local
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>You would likely see something more like this:</p>
 <div class="codewrapper">
@@ -738,7 +738,7 @@ <h3 id="absolute-vs-relative-paths">Absolute vs Relative Paths<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: <code>.</code> stands for the current directory.</li>
 <li>No: <code>/</code> stands for the root directory.</li>
@@ -778,7 +778,7 @@ <h3 class="callout-title">Relative Path Resolution<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: there <em>is</em> a directory <code>backup</code> in
 <code>/Users</code>.</li>
@@ -821,7 +821,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: <code>pwd</code> is not the name of a directory.</li>
 <li>Yes: <code>ls</code> without directory argument lists files and
@@ -853,7 +853,7 @@ <h3 class="callout-title">Exploring More<code>ls</code>Arguments<a class="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>The <code>-l</code> arguments makes <code>ls</code> use a
 <strong>l</strong>ong listing format, showing not only the
@@ -888,7 +888,7 @@ <h3 class="callout-title">Listing Recursively and By Time<a class="anchor" aria-
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>The directories are listed alphabetical at each level, the
 files/directories in each directory are sorted by time of last
@@ -979,8 +979,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/13-navigation.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/13-navigation.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor/14-files.html b/instructor/14-files.html
index 2051490..bf758a9 100644
--- a/instructor/14-files.html
+++ b/instructor/14-files.html
@@ -270,7 +270,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Working with files</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/14-files.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -847,8 +847,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/14-files.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/14-files.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor/15-wildcards-pipes.html b/instructor/15-wildcards-pipes.html
index bdadcf9..035931a 100644
--- a/instructor/15-wildcards-pipes.html
+++ b/instructor/15-wildcards-pipes.html
@@ -266,7 +266,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Wildcards and pipes</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/15-wildcards-pipes.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -831,8 +831,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/15-wildcards-pipes.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/15-wildcards-pipes.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor/16-scripts.html b/instructor/16-scripts.html
index eb45b8b..5f05e34 100644
--- a/instructor/16-scripts.html
+++ b/instructor/16-scripts.html
@@ -267,7 +267,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Scripts, variables, and loops</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/episodes/16-scripts.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -932,8 +932,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/16-scripts.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/16-scripts.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index df4f7fe..3c3a72d 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -319,8 +319,8 @@ <h1>Page not found</h1>
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/404.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/404.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index e5ae052..f00bb29 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -254,7 +254,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Contributor Code of Conduct</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/CODE_OF_CONDUCT.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -341,8 +341,8 @@ <h1>Contributor Code of Conduct</h1>
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/CODE_OF_CONDUCT.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 085bcc3..ec566d6 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -254,7 +254,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Licenses</h1>
-        <p>Last updated on 2024-02-06 |
+        <p>Last updated on 2024-02-13 |
         
         <a href="https://github.com/EPCCed/2024-01-18-hpc-shell-noc/edit/main/LICENSE.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -392,8 +392,8 @@ <h1>Licenses</h1>
   "url": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/LICENSE.html",
   "identifier": "https://EPCCed.github.io/2024-01-18-hpc-shell-noc/instructor/LICENSE.html",
   "dateCreated": "2024-01-18",
-  "dateModified": "2024-02-06",
-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index c588bf3..2840ba9 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
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 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 30 minutes</p>
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 <hr>
-<p>Last updated on 2024-02-06 |
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-<p>Last updated on 2024-02-06 |
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 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 50 minutes</p>
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-  "datePublished": "2024-02-06"
+  "dateModified": "2024-02-13",
+  "datePublished": "2024-02-13"
 }
 
   </script><script>