redirecting stdin and stdout to a file

hi,
i've been trying to redirect stderr and stdout to a file,

i ran these command,

dd if=/dev/null of=/dev/null &pid=$!
kill -USR1 $pid > abc.txt 2>&1

somehow i still manage to get the output on screen;
19755503+0 records out
10114817536 bytes (10 GB) copied, 122.91 seconds, 82.3 MB/s

i have also tried directing only the stdout to a file, and only stderr
to a file, with both bearing similar results as above. why is it so? is
there somethign else that will print to screen other than these 2?

thanks in advance and best regards,
jackson

.

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