найти файлы (find files)
Стандартный вывод сообщений (Stderr)
The -ok primary shall write a prompt to standard error containing
at least the utility_name to be invoked and the current pathname.
In the POSIX locale, the last non-<blank> in the prompt shall be
'?'. The exact format used is unspecified.
Otherwise, the standard error shall be used only for diagnostic
messages.
