autodl-irssi is an advanced and easy to use torrent file downloader plugin for Irssi. The optional ruTorrent plugin (GUI) makes it even easier to use. The installer will set everything up. It works by connecting to your torrent tracker's IRC announce channel. You tell it exactly which IRC servers and channels to connect to and it does the rest. When a new torrent is announced, and matches one of the user filters, it's immediately downloaded. There's no delay like RSS, which polls once every 5-15 minutes. Once downloaded, the torrent file can be saved to a torrent client watch directory, sent to rtorrent, or uploaded to an FTP server. It supports more than 70 private trackers, and it's very easy to add your own if you know some basic XML and regular expressions. The filters are easy to set up, but also advanced. Some of the filters are release name, TV show name, torrent size, resolution, encoder, source, year, format, bitrate, medium, category, and many more. To prevent you from accidentally downloading too many files at once, you can also tell it to only allow X number of downloads per day, week, or month.
Pactester is a tool to test proxy auto-configuration (PAC) files. PAC files are used by browsers to identify the correct proxy server for a given URL. Since the PAC file evaluation mechanism is generated inside the browser and cannot be accessed from outside, the only way to tell which proxy your browser will use for a specific URL is manual inspection of the PAC file. Unfortunately, this approach is error prone and quickly becomes impractical for large and complex PAC files. Pactester resolves this issue by simulating browser behavior.