sed-recursive-benchmark results on my system: 0.131411 sec find-xargs-sd.sh 0.323906 sec find-xargsparallel-sed.sh 0.326623 sec find-xargs-sed.sh 0.397934 sec find-xargs-perl.sh 4.53739 sec find-exec-sed.sh 10.3247 sec parallel-sed.sh