Important: To properly start HyperWorks on a Linux workstation, you need to execute HyperWorks from a valid directory.

On Linux, HyperWorks is launched by running the hw script from <altair_dir>/altair/scripts.

Do not run:
cd <altair_dir>/altair/scripts
./hw
If run this way, you will receive errors as HyperWorks will try to write some files to the installation directory, where you most likely will not have write permissions.

Use the command below:
cd /home/user (or any directory where you have writing permissions)
<altair_dir>/altair/scripts/hw