linux删除文件的6种方法(总结)

test  for i in $(seq 1 500000)

for> do

for> echo test >>$i.txt

for> done

test  time rm -f *

zsh: sure you want to delete all the files in /home/hungerr/test [yn]? y

zsh: argument list too long: rm

rm -f *  3.63s user 0.29s system 98% cpu 3.985 total

test  time find ./ -type f -exec rm {} \;

find ./ -type f -exec rm {} \;  49.86s user 1032.13s system 41% cpu 43:19.17 total

test  time find ./ -type f -delete      

find ./ -type f -delete  0.43s user 11.21s system 2% cpu 9:13.38 total

~  time rsync -a --delete blanktest/ test/

rsync -a --delete blanktest/ test/  0.59s user 7.86s system 51% cpu 16.418 total

import os

import time

stime=time.time()

for pathname,dirnames,filenames in os.walk('/home/username/test'):

     for filename in filenames:

         file=os.path.join(pathname,filename)

         os.remove(file)

 ftime=time.time()

 print ftime-stime

~  python test.py

494.272291183