I recently installed ifort (version 2019, update 2) on an i7 computer running Scientific Linux 7 (this is Red Hat 7, recompiled and released for high-energy physics folks). Install went ok and ifort is present in /opt/intel/bin, but the software paths don't seem to be configured properly. ie, when I run "ifort" from the command line, the shell responds that the command isn't found.
Running the config scripts doesn't seem to help, eg
[root@toulouse ~]# cd /opt/intel/bin/
[root@toulouse bin]# ./ifortvars.sh -arch intel64 -platform linux