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What does the tee l2r or r2l argument mean?

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I saw a socat example here , where they use tee l2r | socat - "TCP:remote:5555" | tee r2l what does the l2r or r2l mean?
Asked by René Link (131 rep)
Dec 12, 2023, 04:02 PM
Last activity: Dec 13, 2023, 03:59 PM