How to remove users starting from 1day

RouterOS The User Manager
1

Hello,
I’m new in mikrotik programming. I would like your help for the following issues: (rb750 v4.11)

  1. In the last 2 years I have created 4000 hotspot users starting from 1day (example: 1dayijk22k) How can I remove them?
    I have successfully used the script:
    /tool user-manager user remove [find credit-left=00:00:00]
    to remove users with no credit left!
    I suppose that this would be a similar script.

  2. How can I delete all sessions of those users?

  3. How can I delete the log files?

Thanks

Billy