ion_auth generate lots of users via shell

[eluser]Unknown[/eluser]
Hi,

anybody using ion_auth that had to create lots of user via f.example bash (?)
I need to pre-create 5000-10000 users in mysql for the ion_auth login framework, any pointers on how to solve that would be much appreciated !

My main problem is the bcrypt / salt /hash stuff for the password field, and how to do that either via php-cli, any linux utilitie or something else ...