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An in-depth exploration of the art of shell scripting
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This is a practical guide which, while not always being too serious, tries to give real-life instead of theoretical examples.
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Introduction guide
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This text is a brief description of the features that are present in the Bash shell. This manual is meant as a brief introduction to features found in Bash. The Bash manual page should be used as the definitive reference on shell behavior.
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Free clipart for a wide range of uses
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The quick and simple editor for cron schedule expressions
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An easy and elegant way to use your computer, GNOME is designed to put you in control and get things done.
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Google Fonts is a library of more than 1,000 free licensed font families and APIs for convenient use via CSS and Android. The library also has delightful and beautifully crafted icons for common actions and items. Download them for use in your digital products for Android, iOS, and web.
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GPSBabel converts waypoints, tracks, and routes between popular GPS receivers such as Garmin or Magellan and mapping programs like Google Earth or Basecamp.
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Help to create a desired border style
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Reference and help information for HTML and CSS.
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Internet Archive is a non-profit library of millions of free books, movies, software, music, websites, and more.
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Download a list of IPs by country. Usually used for iptables or other firewall blocking.
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Linux Tips and Techniques for Everyday Use
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"The place where you learn Linux"
Looking for an in-depth and easy-to-understand introduction to Linux? Then look no further!
We don't just show you how to execute a handful of commands and use a few utilities. The Linux Tutorial goes beyond the basics, providing you with the knowledge necessary to get the most out of your Linux system.
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This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.
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Your one stop web analytics problem solver. Matomo has revolutionised what an all-in-one web analytics platform should be.
- Powerful Web Analytics Platform
- Heatmaps, Sessions Recordings, A/B Testing, Funnels, Goals, Form Analytics
- Visitor Profiles
- Enhanced SEO Features
- Matomo Tag Manager
- GDPR Manager
- Roll-Up Reporting
- White Label
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Detailed validation of server SSL certificates and settings. Evaluate a web site.
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JavaScript based. Performs real time tests on a given regex expression
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This test will connect to a mail server via SMTP, perform a simple Open Relay Test and verify the server has a reverse DNS (PTR) record. It will also measure the response times for the mail server. If you don't know your mail server's address, start with a MX Lookup.