Why pipes sometimes get "stuck": buffering

Why pipes sometimes get "stuck": buffering

Here’s a niche terminal problem that has bothered me for years but that I never really understood...概要を表示 Here’s a niche terminal problem that has bothered me for years but that I never really understood until a few weeks ago. Let’s say you’re running this command to watch for some specific output in a log file: tail -f /some/log/file | grep thing1 | grep thing2 If log lines are being added to the file relatively slowly, the result I’d see is… nothing! It doesn’t matter if there were matches in the lo

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