Hi Monks , can you please explain me why output redirection doesn't work for the next perl code ( actually it is not only perl's problem but also shell)

so , if I run in my bash or zsh 
echo test | perl -pe 's/st/AB/';  >/tmp/xx

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it doesn't get redirected to /tmp/xx I tried to redirect STDERR like 
echo test | perl -pe 's/st/AB/';  >/tmp/xx 2>&1

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but it also doesn't work . I think it comes from the way perl prints the result , but I can't understand it .

In reply to output redirection when calling perl from shell - perl -pe "blabla" by noname

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