4 ms·

But if you don't use any process, what process is doing the reading? (This sounds like a zen koan somehow.)

• dredmorbius 10y ago
  I like the koan. But the point should be an additional process. In a UUOC avoidance case, it's the current process which reads, generally via stdin. Say, the shell, or dd itself with an 'if=' parameter. Which I strongly suspect you know.
  • schoen 10y ago
    Yep, my thought was that the UUOC critique doesn't apply to most attempts to substitute cat for dd, because typically those are copying from one (regular or special) to another, and you can't simply use redirection to accomplish this in the absence of a reader.
• smacktoward 10y ago
  When the file is ready, the process appears? :-D