kdestroy —
remove one credential or destroy the current ticket file
  
    | kdestroy | [ -ccachefile]
      [--credential=principal]
      [--cache=cachefile]
      [-A|--all]
      [--no-unlog]
      [--no-delete-v4]
      [--version]
      [--help] | 
kdestroy removes one credential or the current set of
  tickets.
Supported options:
  - -credential=principal
- remove principal from the credential cache if it
      exists.
- -ccachefile
-  
- -cache=cachefile
- The cache file to remove.
- -A
-  
- -- -all
- remove all credential caches.
- -- -no-unlog
- Do not remove AFS tokens.
- -- -no-delete-v4
- Do not remove v4 tickets.