How do I upgrade IP cores at command-line in the Quartus II software version 14.0?

Description

In the Quartus® II software version 14.0, use the following command to upgrade a single IP:

quartus_sh –ip_upgrade –variation_files <ip_path/name_of_ip>.<v/vhd> <project>

To upgrade multiple IPs at the same time, use the following command:

quartus_sh –ip_upgrade –variation_files “<ip_path/name_of_ip1>.<v/vhd>;  <ip_path/name_of_ip2>.<v/vhd>”  <project>

This is documented in the Quartus II Handbook chapter Upgrading IP cores[PDF]