Hello, How delete Keys License Houdini in Linux?
Windows 10 I know how to delete keys where to specify the file "C:\Windows\Keys\"
but linux do not know how to delete keys.

This help page [www.sidefx.com] has the location for each platform. Please note its not recommended to manually remove license keys from the license file as hkey (Houdini License Administrator) should be used instead.

When I was learning the ropes, I stumbled upon a similar issue with deleting keys. Turns out, you can usually find them in the "/etc" directory or within specific application folders.

Have you tried searching for the Houdini license keys there? If not, a quick Google search with your specific version of Houdini might give you some clues.