It's the "\b" char if that's the question: 
# UNIX style:
perl -e '$|++;for(1..10){ print $_;sleep 1; print "\b"}'

# dos style:
perl -e "$|++;for(1..10){ print $_;sleep 1; print \"\b\"}"

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In reply to Re: output on top of old output by sh1tn
in thread output on top of old output by xorl

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