GDAL

Installation

Best install using standard system package manager, such as apt-get, yum, or macports.

Download

Downloading GDAL is very confusing. Web searches lead to dead links or irrelevant redirects. Documentation is nowhere to be found. The sofware installs without man pages. Typing gdal utilities from the command line with -help does produces nothing useful. But following works:

• Download the appropriate version of sources from http://download.osgeo.org/gdal/ as tar.gz file
• expand the file
• install doxygen if needed, and type doxygen in the top directory of the source
• open file html/index.html

Documentation

• Some apparently legacy documentation is at https://trac.osgeo.org/gdal/wiki which appears to be legacy but as far as I can tell it is actually the current one, and also leads to another download page.
• The documentation for version 2.4.0 was installed as described above here.