-f 

Do not prompt for confirmation before converting file names, and assume an answer of yes to all questions asked by tndirck. By default, tndirck behaves as if you define the -i and -R options.

-i 

Prompt for confirmation before each phase of the clean-up process. 

-p 

Suppress file-name conversion. 

-R 

Clean up shadow files in a specific directory and in every sub-directory under it. By default, tndirck behaves as if you define the -i and -R options.

dir

Specify a directory.