From a clean install of Centos 7 You will only need to install the following packages using yum to allow for a successful install of NWCSAF.
To install these packages on your own system you would need the following commands.
yum groupinstall "Development tools"
yum install ksh
Once registered with NWCSAF you will have to download a number of files in order to be prepared for the rest of the tutorial. Once you have successfully registered navigate to your home directory and create a directory named "safnwc".
cd
mkdir safwnc
To download the required files for this tutorial login to the NWCSAF page and navigate to the software download page (from the top banner hover over "Software" and select "Software Download" from the drop down menu). From here select the "NWCSAF/GEO Software Package" link. This should take you to a page that lists all the different parts of the software and auxiliary data that can be downloaded. For a setup like that explored in this tutorial you will need to download:
Other auxiliary files and test data will be needed for use with geostationary satellites other than MSG located at 0 degrees longitude.
A good option to download these files is to navigate to your newly created safnwc directory and use wget. To get the full address of the files you need right click and select "Copy link address" or "Copy Link Location". This can then be pasted after the wget command and the file will be downloaded to your current directory (your new safnwc directory).
cd safnwc
wget http://full/link/address/of/file/NWC-CDOP3-GEO-AEMET-SW-CODE-SYSTEM_v2018_15DEC18.tgz
wget http://full/link/address/of/file/NWC-CDOP3-GEO-AEMET-SW-CODE-COTS_v2018_15DEC18.tgz
wget http://full/link/address/of/file/nwcgeo_v2018
wget http://full/link/address/of/file/ nwcgeo_v2018_env.sh
wget http://full/link/address/of/file/NWC-CDOP3-GEO-AEMET-SW-DATA-MSGx_+000.0_v2018_15DEC18.tgz
wget http://full/link/address/of/file/NWC-CDOP3-GEO-AEMET-SW-DATA-MSGPS_DATASET_v2018.tgz
Some of these files will take a while to download, especially the COTS and auxiliary files.
This should leave you with a new safnwc directory in your home directory populated with 5 new files.