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‎.gitignore

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_site/

‎LICENSE

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Copyright (c) 2011 Peter Mitchell
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

‎README.markdown

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# Bash Tips
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[Bash Tips](http://www.bashtips.org/) is a blog containing tips and pointers on using the GNU Bourne Again SHell.
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## Contributing
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You'll need [Jekyll](http://www.jekyllrb.com/) and [Sass](http://www.sass-lang.com/) to build the site.
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If you find a typo, have suggestions for improvements or want to submit a post, create a fork and send a pull request. A post should have your name and uri in its [YAML Front Matter](https://github.com/mojombo/jekyll/wiki/yaml-front-matter). Look at a previous post for an example.
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## License
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Content of the site is licensed under Creative Commons. The source code is licensed under the MIT license.

‎_config.yml

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auto: false
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archive_offset: 10

‎_layouts/default.html

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<!DOCTYPE html>
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<html lang="en">
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<meta charset="utf-8"/>
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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/screen.css"/>
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<link rel="alternate" type="application/atom+xml" title="Bash Tips feed" href="/atom.xml" />
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</head>
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<body>
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<header>
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<hgroup>
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<h1>
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<a href="/">Bash Tips</a>
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</h1>
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<h2>Tips for using the GNU Bourne-Again SHell.</h2>
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</hgroup>
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</header>
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{{ content }}
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<footer>
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<nav>
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<ul>
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<li><a href="/about.html">About</a></li>
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<li><a href="https://www.github.com/petmit/bashtips">Source code</a></li>
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<li>Licensed under <a href="http://creativecommons.org/licenses/by-sa/3.0/us/">Creative Commons Attribution 3.0 License</a></li>
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</ul>
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</nav>
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</footer>
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</body>
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</html>
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‎_layouts/post.html

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---
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layout: default
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---
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<article>
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<header>
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<hgroup>
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<h1>{{ page.title }}</h1>
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<h2>
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by <a href="{{ page.author.uri }}">{{ page.author.name }}</a> on
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<time datetime="{{ page.date | date_to_string }}" pubDate="pubDate">
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{{ page.date | date_to_string }}
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</time>
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</h2>
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</hgroup>
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</header>
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{{ content }}
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</article>

‎_plugins/sass_converter.rb

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module Jekyll
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require 'sass'
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class SassConverter < Converter
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safe true
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priority :low
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def matches(ext)
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@ext = ext
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@ext =~ /s[ac]ss/i
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end
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def output_ext(ext)
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".css"
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end
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def convert(content)
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if @ext =~ /\.scss$/i
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syntax = :scss
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else
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syntax = :sass
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end
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engine = Sass::Engine.new(content, :syntax => syntax, :style => :compact)
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engine.render
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end
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end
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end

‎_posts/2011-10-02-exit-status.markdown

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---
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layout: post
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author:
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name: Bash Tips
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uri: http://www.bashtips.org
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---
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Executing a command will return an exit status (0 if successful, non-zero otherwise). The exit status is stored in the special variable `$?`.
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echo "Hello world"
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echo $?
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will print `0` and
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/bin/false
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echo $?
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will print `1` (non-zero exit failure).

‎_posts/2011-10-10-executing-commands-from-history.markdown

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---
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layout: post
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author:
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name: Bash Tips
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uri: http://www.bashtips.org
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---
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When you execute a command, the shell will store it in a command line history. Using `fc` you can list and re-execute commands from your history.
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fc -l
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will list your 16 previous commands and
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fc 130
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will open command number 130 in an editor, allow you to edit it, and then execute it. You can pass the `-s` flag to to skip editing.

‎_posts/2011-10-31-editing-the-previous-command.markdown

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---
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layout: post
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author:
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name: Bash Tips
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uri: http://www.bashtips.org
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---
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If you have typed command and you need to run it again with some minor changes, you can use quick substition event designators. Say you want to list the files in `/var/log/`.
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ls /var/log/
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If you decide you need to list the files in `/var/lib` instead, you can use
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^log^lib
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which will result in
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ls /var/lib/
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being executed.

‎_posts/2011-11-07-searching-the-history.markdown

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---
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layout: post
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author:
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name: Bash Tips
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uri: http://www.bashtips.org
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---
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The key combination `Ctrl-r` will allow you to search your command history and execute a previously typed command.
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ls -l /var/log
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(reverse-i-search)`ls`: ls -l /var/log
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Press `Esc` to leave search mode and return to prompt, or `Enter` if you want to execute a match.

‎_posts/2011-11-25-conditional-execution.markdown

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---
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layout: post
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author:
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name: Bash Tips
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uri: http://www.bashtips.org
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---
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You can use `&&` and `||` to chain together commands and execute them conditionally, i.e. based on the value of the [exit status](/2011/10/15/exit-status.html) of the last command. `&&` will execute the second command only if the first is successful.
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/bin/true && echo "foo"
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will print `foo`. `||` will execute the second command only if the first is unsuccessful.
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/bin/true || echo "foo"
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will not print anything.

‎about.html

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---
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layout: default
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title: About
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---
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<article>
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<p>The <a href="http://www.gnu.org/software/bash/">GNU Bourne Again SHell</a> is the default <a href="http://en.wikipedia.org/wiki/Unix_shell">shell</a> on Linux and Apple MacOS X. It has a wealth of features, many of which are hidden deep in documentation. On this site you will find some tips and tricks for using Bash.</p>
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<p>While you may not find the most detailed of explanations here, you can always check the <code>man</code> pages of your shell or the <a href="http://www.gnu.org/software/bash/manual/bashref.html">bash reference manual</a> online for further information.</p>
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<p>If you find a typo, have suggestions for improvements or want to submit a post, feel free to <a href="https://www.github.com/petmit/bashtips/">create a fork on github</a> and send a pull request. You'll need <a href="http://www.ruby-lang.org/">Ruby</a>, <a href="http://www.jekyllrb.com/">Jekyll</a> and <a href="http://www.sass-lang.com/">Sass</a> to build the site.</p>
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<p>The icon used in the logo and as the favicon is from the <a href="http://www.famfamfam.com/lab/icons/silk/">silk icon set</a> from <a href="http://www.famfamfam.com/">famfamfam.com</a>.</p>
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</article>

‎atom.xml

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---
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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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<id>http://www.bashtips.org/</id>
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<link href="http://www.bashtips.org/atom.xml" rel="self"/>
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<link href="http://www.bashtips.org/"/>
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<title>Bash Tips</title>
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<subtitle>Tips for using the GNU Bourne-Again SHell.</subtitle>
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<updated>{{ site.time | date_to_xmlschema }}</updated>
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<author>
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<name>Bash Tips</name>
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<uri>http://www.bashtips.org/</uri>
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</author>
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{% for post in site.posts %}
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<entry>
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<id>http://www.bashtips.org{{ post.id }}</id>
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<link href="http://www.bashtips.org{{ post.url }}"/>
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<title>{{ post.title }}</title>
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<updated>{{ post.date | date_to_xmlschema }}</updated>
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<author>
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<name>{{ post.author.name }}</name>
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<uri>{{ post.author.uri }}</uri>
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</author>
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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>

‎css/screen.scss

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---
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---
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html, body {
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background: #FFF;
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color: #333;
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margin: 0;
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padding: 0;
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}
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body {
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max-width: 630px;
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margin: 0 auto;
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font: 1em Helvetica, Arial, Verdana, sans-serif;
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}
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h1, h2, ul {
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margin: 0;
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padding: 0;
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}
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a {
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text-decoration: none;
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color: #369;
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&:hover {
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text-decoration: underline;
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}
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}
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ul {
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list-style-type: none;
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}
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body > header hgroup {
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margin: 2em 0 2em;
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h1 {
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background: url("/images/application_osx_terminal.png") no-repeat left center;
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padding-left: 20px;
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font-size: 24px;
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a {
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text-decoration: none;
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color: #333;
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&:hover {
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text-decoration: none;
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}
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}
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}
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h2 {
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font-size: .9em;
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font-weight: normal;
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}
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}
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article {
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margin: 0 0 2em;
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header hgroup {
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margin-bottom: .8em;
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h1 {
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font-size: 1.5em;
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a {
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color: #333;
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text-decoration: none;
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&:hover {
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text-decoration: none;
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}
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}
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}
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h2 {
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font-size: .8em;
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font-weight: normal;
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a {
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color: inherit;
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text-decoration: none;
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font-weight: bold;
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}
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}
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}
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p {
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margin: 0 0 1em;
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> code {
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padding: 0 2px;
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}
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}
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pre, code {
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font: .9em "Bitstream Vera Sans Mono", "DejaVu Sans Mono", Monaco, monospace;
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background-color: #EEE;
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}
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pre {
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margin: 0 0 1em;
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padding: 7px;
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overflow: auto;
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}
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}
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section.archive {
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header h1 {
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font-size: 1.2em;
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margin: 0 0 1em;
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}
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ul li {
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margin: 1em 0;
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}
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}
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footer {
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border-top: 1px solid #CCC;
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margin: 2em 0 2em;
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font-size: .8em;
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padding: 10px 0;
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nav {
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ul li {
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display: inline;
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&+ li::before {
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padding: 0 6px;
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content: "\0020\2022\0020";
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}
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}
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}
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}

‎favicon.ico

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‎images/application_osx_terminal.png

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‎index.html

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---
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layout: default
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title: Bash Tips
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---
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{% for post in site.posts limit: site.archive_offset %}
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<article>
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<header>
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<hgroup>
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<h1>
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<a href="{{ post.url}}">{{ post.title }}</a>
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</h1>
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<h2>
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by <a href="{{ post.author.url }}">{{ post.author.name }}</a> on
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<time datetime="{{ post.date | date_to_xmlschema }}" pubDate="pubDate">
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{{ post.date | date_to_string }}
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</time>
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</h2>
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</hgroup>
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</header>
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{{ post.content }}
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</article>
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{% endfor %}
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{% if site.posts.size > site.archive_offset %}
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<section class="archive">
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<header>
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<h1>Archive</h1>
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</header>
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<ul>
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{% for post in site.posts offset: site.archive_offset %}
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<li>
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<time datetime="{{ post.date | date_to_xmlschema }}">
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{{ post.date | date_to_string }}
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</time>
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» <a href="{{ post.uri }}">{{ post.title }}</a>
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</li>
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{% endfor %}
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</ul>
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</section>
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{% endif %}

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