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    exec 5<>"/dev/tcp/localhost/80"
    echo -ne "GET / HTTP/1.1\r\nHost: localhost\r\n\r\n" > &5
    cat < &5
FTFY



Clever, though nc really is better than telnet. It is much easier to pipe into just for starters.

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/dev/tcp is a bashism. It's not a real (kernel-provided) device.

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