/dev/null is the null device. Any data written to it is immediately discarded; the kernel simply reports a successful write operation. Nothing is stored, and attempting to read the data back is impossible-it behaves as an empty file and returns EOF instantly. This makes /dev/null useful for silencing unwanted command output, unlike the other options, which describe behaviors the null device does not provide.
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What is /dev/null in Linux?
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What is the difference between `> /dev/null` and `2> /dev/null`?