Tag: cli

Libvips is a good image processor

Libvips' resource usage and speed are unmatched, especially compared to ImageMagick.

2 minute read

Today I discovered libvips, a command line utility and library to manipulate and process images, and I am impressed. I’ve been using ImageMagick and its fork, GraphicsMagick, for as long as I have had to process images from the CLI, and they work well for moderately-sized images. But lately, I have been preparing virtual texture datasets for Gaia Sky and the sizes of my images have increased exponentially. Right now I’m processing 64K and 128K images on the regular (that is 131072x65536 pixels), and ImageMagick just can’t do it reliably.

GNU screen cheatsheet

Quick reference to GNU screen essential bindings

2 minute read

GNU screen is a terminal multiplexer that allows for different virtual windows and panes running different processes within the same terminal session, being it local or remote. This post contains a quick reference to the most used default key bindings of GNU screen. In contrast to other terminal multiplexers like tmux, GNU screen is probably already installed in your server of choice.

Run a command when files change

Learn about entr and how it can help you

2 minute read

If you usually develop your software without an IDE, it may come in handy to be able to run a custom command or two whenever a file or a group of files in the file system is modified. This post discusses entr, a small event notify test runner which might just be what you need to fill an inconvenient gap in your mouseless development environment.

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