Az új Ubuntu :)
$ a=0 ; time while [[ a -le 66666 ]] ; do touch $a ; let a=a+1 ; done
real 3m27.681s
user 1m30.086s
sys 2m2.268s
$ time ls -1 | wc -l
real 0m0.359s
user 0m0.292s
sys 0m0.076s
$ time ls -1tr | tail
real 0m0.436s
user 0m0.216s
sys 0m0.228s
$ time rm *
real 0m2.259s
user 0m0.644s
sys 0m1.612s
Btw szutyok P4HT-s gép, öreg ide-s hdd-vel.