How to remove black bands from a video with FFmpeg ‘cropdetect’ and ‘crop’ filters
Automatically removes with FFmpeg the black bands typical of panoramic videos converted to 4:3.
Convert JPEG to WebP recursively
How to convert a JPG/JPEG image to WebP recursively.
How to start the processor fan early to avoid high temperatures.
Lower the values considered high and critical of the temperature sensors of the processor so that the fan starts earlier and avoid heating.
How to install and use ZeroNet in Trisquel 7 «Belenos»
ZeroNet uses Bitcoin cryptography and BitTorrent technology to build a decentralized censorship-resistant network. Users can publish static or dynamic websites into ZeroNet and visitors can choose to also serve the website. Websites will remain online even if it is being served by only one peer. When a site is updated by its owner, all nodes serving that site (previous visitors) will receive only the incremental updates done to the site content. ZeroNet counts with a built-in SQL database. This makes content-heavy site development easy. The DB is also synced with hosting nodes with incremental updates. Coded in Python, licensed under a GNU GPL 2.
How To Install Fish, A Smart Command Line Shell for Gnu/Linux/Hurd and *BSD
Fish is a fully-equipped command line shell (like bash or zsh) that is smart and user-friendly. fish supports powerful features like syntax highlighting, autosuggestions, and tab completions that just work, with nothing to learn or configure.
If you want to make your command line more productive, more useful, and more fun, without learning a bunch of arcane syntax and configuration options, then fish might be just what you’re looking for!