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First stab at layout and content.
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‎.gitignore

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_site

‎_config.yml

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auto: true
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pygments: true
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paginate: 10
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permalink: /:year/:month/:title/

‎_layouts/default.html

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<!DOCTYPE html>
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<html>
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<head>
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<title>{{ page.title }}</title>
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</head>
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<body>
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{{ content }}
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</body>
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<head>
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<title>{{ page.title }}</title>
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<link rel="stylesheet" type="text/css" href="/css/default.css" media="screen" />
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<link rel="alternate" type="application/atom+xml" title="Atom" href="/feeds/atom.xml" />
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<link rel="alternate" type="application/rss+xml" title="RSS" href="/feeds/rss.xml" />
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</head>
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<body>
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<h1 class="header">
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<a href="/">#</a>
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Beware of programmers carrying screwdrivers
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</h1>
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<div class="content">{{ content }}</div>
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<div class="footer">
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<ul class="links">
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<li><a href="/about.html">About me</a></li>
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<li><a href="http://esm.logic.net/">My real blog</a></li>
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<li><a href="http://www.flickr.com/photos/edward_marshall">Flickr</a></li>
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<li><a href="http://github.com/logic">Github</a></li>
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<li><a href="/feeds/atom.xml" rel="alternate" type="application/atom+xml">Atom</a>/<a href="/feeds/rss.xml" rel="alternate" type="application/rss+xml">RSS</a></li>
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</ul>
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</div>
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</body>
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</html>

‎_layouts/post.html

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---
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layout: default
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---
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<h1 class="postTitle"><a href="{{ page.url }}">{{ page.title }}</a></h1>
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<div class="post">
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{{ content }}
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<p class="meta">
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{{ page.date | date: "%b %d, %Y" }} |
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<a href="{{ page.url }}">Permalink</a>
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<br />
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{% for c in page.categories %}
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<span class="postCategory">{{ c }}</span>{% if forloop.last != true %},{% endif %}
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{% endfor %}
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</p>
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</div>
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<div id="related">
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<h2>Related Posts</h2>
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<ul class="posts">
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{% for post in site.related_posts limit:3 %}
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<li><span>{{ post.date | date_to_string }}</span> &raquo; <a href="{{ post.url }}">{{ post.title }}</a></li>
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{% endfor %}
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</ul>
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</div>

‎_posts/2009-12-13-kerberos-and-ksu.html

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---
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layout: post
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title: "Kerberos and ksu"
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categories:
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- linux
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- sysadmin
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- bash
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- shell
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- kerberos
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- xwindows
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- security
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---
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<p>Kerberos as a site-wide authentication mechanism has it's benefits, but the software that's typically used to drive it is getting a little long in the tooth. ksu, the kerberized equivalent to su, is only a partial implementation of what su does; there's no argument to ksu that says "this is a login shell, please set up the necessary environment". Even su has a couple of failings; in particular, if you're an X user, you're probably familiar with how su - doesn't bring your X authentication data along for the ride.</p>
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<p>So, I fixed both of those a while back, with a really ugly shell script. Just in case anyone else might find it handy, here it is:</p>
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{% highlight bash linenos=table anchorlinenos=True lineanchors=ksu %}
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#!/bin/sh
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# Replacement for raw "ksu" in kerberized environments;
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# behaves more like "su -", and retains xauth data.
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if [ $# -lt 1 ]
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then
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echo "Usage: `basename $0` <target user> [ <command> [ <arg> ] ... ]"
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exit 2
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fi
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TARGET_USER="$1"
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shift
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# be a basic login shell if no command is specified.
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if [ -z "$*" ]
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then
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TARGET_CMD='-l'
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else
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TARGET_CMD="-c '$*'"
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fi
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# FD 4 becomes stdin
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exec 4>&0
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xauth list | sed -e 's/^/add /' | {
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# FD 3 becomes xauth output
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# FD 0 becomes stdin again
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# FD 4 is closed
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exec 3>&0 0>&4 4>&-
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exec /usr/bin/env -u PATH -u LD_LIBRARY_PATH \
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/usr/krb5/bin/ksu "${TARGET_USER}" -e /bin/bash -l -c "
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xauth -q <&3
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cd
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exec /usr/bin/env DISPLAY='${DISPLAY}' "'"$SHELL"'" ${TARGET_CMD} 3>&-"
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}
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{% endhighlight %}

‎_posts/2010-09-17-bash-history.html

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---
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layout: post
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title: "Bash history retention for root"
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categories:
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- linux
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- sysadmin
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- bash
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- shell
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---
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<p>A quick random Linux administration tip: add the following three lines to <kbd>root</kbd>'s <kbd>.bashrc</kbd>:</p>
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{% highlight bash linenos=table anchorlinenos=True lineanchors=bashhist %}
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[ ! -d $HOME/.history ] && mkdir $HOME/.history
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set -- `/usr/bin/who -m`
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HISTFILE="$HOME/.history/`/bin/date +%Y-%m-%d.%T`.`/bin/hostname -s`.$$.$1"
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{% endhighlight %}
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<p>Once you do, future login sessions as root will be saved in a directory named <kbd>.history</kbd> in <kbd>root</kbd>'s home directory, in the pattern:</p>
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{% highlight console %}
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2010-09-17.13:53:27.foohost.14379.foouser
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{% endhighlight %}
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<p>Why would you want to do something like this? First, each shell/session is stored to it's own file, rather than interleaving into a single file in whatever order you might have exited them. Second, it tells you both when you started the session (by the filename) and when you ended it (by the timestamp on the file). Third, for systems administered by multiple people, it tells you who was <kbd>su</kbd>'d to <kbd>root</kbd> when the session occurred (or just displays <kbd>root</kbd> for console logins), so you know which admin "owned" that session.</p>
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<p>The main downside here is that you lose the ability to see multiple sessions' worth of history in your history buffer, but for systems with multiple admins, I haven't missed it (as getting someone else's history when scrolling back has proven more annoying than helpful for me), but if you lean hard on your history, this might not be a net win for you.</p>
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<p>Also, I'd suggest resisting the urge to treat this as an "audit log" of any kind; it's trivially bypassed, meaning that this is for teams that trust each other. Use it instead as a way of recreating the how and why of a change after (occasionally <em>long</em> after) it was made.</p>

‎about.html

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---
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layout: default
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title: "Beware of programmers carrying screwdrivers"
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---
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<div class="post">
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<p><a href="http://esm.logic.net/">See here.</a></p>
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</div>

‎css/default.css

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@import url("syntax.css");
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.highlighttable .linenos .linenodiv {
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border-right: 1px #CCC solid;
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padding-right: 10px;
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margin-right: 10px;
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}
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.header { border-bottom: 1px dashed; }
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.content { width: 80%; margin: 0 auto; }
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.content :first-child { margin-top: 0; }
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.meta { margin: 0; padding: 0; text-align: right; }
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.footer { border-top: 1px dashed; }
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.postTitle { margin-bottom: 0; }
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.post { margin: 10px; padding: 10px; border: 10px solid #CCC; }
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.links li { list-style: none; float: left; padding: 3px 5px; }

‎css/syntax.css

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.highlight { background: #ffffff; }
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.highlight .c { color: #999988; font-style: italic } /* Comment */
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.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
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.highlight .k { font-weight: bold } /* Keyword */
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.highlight .o { font-weight: bold } /* Operator */
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.highlight .cm { color: #999988; font-style: italic } /* Comment.Multiline */
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.highlight .cp { color: #999999; font-weight: bold } /* Comment.Preproc */
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.highlight .c1 { color: #999988; font-style: italic } /* Comment.Single */
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.highlight .cs { color: #999999; font-weight: bold; font-style: italic } /* Comment.Special */
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.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
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.highlight .gd .x { color: #000000; background-color: #ffaaaa } /* Generic.Deleted.Specific */
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.highlight .ge { font-style: italic } /* Generic.Emph */
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.highlight .gr { color: #aa0000 } /* Generic.Error */
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.highlight .gh { color: #999999 } /* Generic.Heading */
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.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
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.highlight .gi .x { color: #000000; background-color: #aaffaa } /* Generic.Inserted.Specific */
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.highlight .go { color: #888888 } /* Generic.Output */
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.highlight .gp { color: #555555 } /* Generic.Prompt */
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.highlight .gs { font-weight: bold } /* Generic.Strong */
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.highlight .gu { color: #aaaaaa } /* Generic.Subheading */
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.highlight .gt { color: #aa0000 } /* Generic.Traceback */
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.highlight .kc { font-weight: bold } /* Keyword.Constant */
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.highlight .kd { font-weight: bold } /* Keyword.Declaration */
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.highlight .kp { font-weight: bold } /* Keyword.Pseudo */
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.highlight .kr { font-weight: bold } /* Keyword.Reserved */
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.highlight .kt { color: #445588; font-weight: bold } /* Keyword.Type */
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.highlight .m { color: #009999 } /* Literal.Number */
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.highlight .s { color: #d14 } /* Literal.String */
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.highlight .na { color: #008080 } /* Name.Attribute */
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.highlight .nb { color: #0086B3 } /* Name.Builtin */
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.highlight .nc { color: #445588; font-weight: bold } /* Name.Class */
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.highlight .no { color: #008080 } /* Name.Constant */
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.highlight .ni { color: #800080 } /* Name.Entity */
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.highlight .ne { color: #990000; font-weight: bold } /* Name.Exception */
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.highlight .nf { color: #990000; font-weight: bold } /* Name.Function */
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.highlight .nn { color: #555555 } /* Name.Namespace */
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.highlight .nt { color: #000080 } /* Name.Tag */
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.highlight .nv { color: #008080 } /* Name.Variable */
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.highlight .ow { font-weight: bold } /* Operator.Word */
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.highlight .w { color: #bbbbbb } /* Text.Whitespace */
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.highlight .mf { color: #009999 } /* Literal.Number.Float */
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.highlight .mh { color: #009999 } /* Literal.Number.Hex */
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.highlight .mi { color: #009999 } /* Literal.Number.Integer */
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.highlight .mo { color: #009999 } /* Literal.Number.Oct */
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.highlight .sb { color: #d14 } /* Literal.String.Backtick */
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.highlight .sc { color: #d14 } /* Literal.String.Char */
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.highlight .sd { color: #d14 } /* Literal.String.Doc */
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.highlight .s2 { color: #d14 } /* Literal.String.Double */
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.highlight .se { color: #d14 } /* Literal.String.Escape */
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.highlight .sh { color: #d14 } /* Literal.String.Heredoc */
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.highlight .si { color: #d14 } /* Literal.String.Interpol */
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.highlight .sx { color: #d14 } /* Literal.String.Other */
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.highlight .sr { color: #009926 } /* Literal.String.Regex */
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.highlight .s1 { color: #d14 } /* Literal.String.Single */
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.highlight .ss { color: #990073 } /* Literal.String.Symbol */
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.highlight .bp { color: #999999 } /* Name.Builtin.Pseudo */
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.highlight .vc { color: #008080 } /* Name.Variable.Class */
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.highlight .vg { color: #008080 } /* Name.Variable.Global */
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.highlight .vi { color: #008080 } /* Name.Variable.Instance */
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.highlight .il { color: #009999 } /* Literal.Number.Integer.Long */

‎feeds/atom.xml

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---
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layout: nil
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---
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<?xml version="1.0" encoding="utf-8"?>
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<feed xmlns="http://www.w3.org/2005/Atom">
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<title>esm@github</title>
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<subtitle>Beware of programmers who carry screwdrivers</subtitle>
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<link href="http://github.logic.net/atom.xml" rel="self"/>
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<link href="http://github.logic.net/"/>
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<updated>{{ site.time | date_to_xmlschema }}</updated>
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<id>http://github.logic.net/</id>
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<author>
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<name>Ed Marshall</name>
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<email>[email protected]</email>
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</author>
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{% for post in site.posts %}
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<entry>
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<title>{{ post.title }}</title>
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<link href="http://github.logic.net{{ post.url }}"/>
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<updated>{{ post.date | date_to_xmlschema }}</updated>
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<id>http://github.logic.net{{ post.id }}</id>
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<content type="html">{{ post.content | xml_escape }}</content>
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</entry>
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{% endfor %}
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</feed>

‎feeds/rss.xml

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---
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layout: nil
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---
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<?xml version="1.0" encoding="utf-8"?>
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<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0">
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<channel>
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<title>esm@github</title>
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<link>http://github.logic.net/</link>
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<description>Beware of programmers who carry screwdrivers</description>
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<lastBuildDate>{{ site.time }}</lastBuildDate>
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{% for category in site.categories %}
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<category>{{ category }}</category>
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{% endfor %}
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{% for post in site.posts %}
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<item>
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<title>{{ post.title }}</title>
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<link>http://github.logic.net{{ post.url }}</link>
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<guid>http://github.logic.net{{ post.url }}</guid>
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<pubDate>{{ post.date }}</pubDate>
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<description>{{ post.content | xml_escape }}</description>
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{% for category in post.categories %}
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<category>{{ category }}</category>
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{% endfor %}
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</item>
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{% endfor %}
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</channel>
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</rss>

‎index.html

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---
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layout: default
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title: "Beware of programmers carrying screwdrivers"
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---
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{% for post in paginator.posts %}
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<h1 class="postTitle"><a href="{{ post.url }}">{{ post.title }}</a></h1>
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<div class="post">
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{{ post.content }}
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<p class="meta">
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{{ post.date | date: "%b %d, %Y" }}
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<br />
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{% for c in post.categories %}
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<span class="postCategory">{{ c }}</span>{% if forloop.last != true %},{% endif %}
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{% endfor %}
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</p>
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</div>
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{% endfor %}
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<div class="paginator">
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<div style="float: left">
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{% if paginator.next_page %}
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<a href="/page{{ paginator.next_page }}/">&larr; Older</a>
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{% endif %}
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</div>
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<div style="float: right">
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{% if paginator.previous_page %}
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<a href="
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{% if paginator.previous_page == 1 %}
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/
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{% else %}
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/page{{ paginator.previous_page }}
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{% endif %}">Newer &rarr;</a>
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{% endif %}
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</div>
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<div style="clear: both">
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</div>
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</div>
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<br />

‎index.md

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