Yes and no.

The buffering in question is done entirely in the program. Unless the program gives you a means of controlling its flushing mechanism, you're out of luck.

However, most applications will automatically flush STDOUT (after each newline) when it's connected to a tty. You can fool such applications by using a pseudo tty. IPC::Run makes it easy to use a pseudo tty. See IO::Pty

In reply to Re: can you autoflush a program in unix? by ikegami
in thread can you autoflush a program in unix? by redss

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