in reply to untarring number of files

perl -le'`tar -zxvf "$_"` for <**/*.tar.gz>'
perl -e'$|=@a=qw /; for(;;){$n=abs 49-$c%98; \ printf"%-49s", $a$c++%4x$n; select $|,$|,$|,.1; \ print"\010"x49}'