this post was submitted on 11 Aug 2025
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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I really need to learn PostGIS. Got any tips?
If you don't know SQL at all, that is where you will need to start.
If you know enough to get the idea and are ready to go further than this might help https://postgis.net/documentation/training/
and this is the best book on the subject: PostGIS In Action https://postgis.us/
Postgresql is the database, Postgis is an extension. All modern databases are spatial, but postgis adds so much more. For example, maybe you reproject something with ArcGIS. In Postgis you simply select with the new projection on the fly.
You can clip, linear reference, compare, etc, all the spatial functions you do in a gis tool. Raster, vector, point data, etc.
I appreciate you. 💚