使用：
代码如下:
foldercleanup.py -d 10 -k c:\test\keepfile.txt c:\test
表示对c:\test目录只保留最近10天的子文件夹和keepfile.txt中指定的子文件夹。
代码：
代码如下:
import os
import os.path
import datetime
def getoption():
from optparse import optionparser
des = “clean up the folder with some options”
prog = “foldercleanup”
ver = “%prog 0.0.1”
usage = “%prog [options] foldername”
p = optionparser(description=des, prog=prog, version=ver, usage=usage,add_help_option=true)
p.add_option(‘-d’,’–days’,action=’store’,type=’string’,dest=’days’,help=”keep the subfolders which are created in recent %days% days”)
p.add_option(‘-k’,’–keepfile’,action=’store’,type=’string’,dest=’keepfile’,help=”keep the subfolders which are recorded in text file %keepfile% “)
options, arguments = p.parse_args()
if len(arguments) != 1:
print(“error: must input one directory as only one parameter “)
return
return options.days, options.keepfile, arguments[0]
def precheckdir(dir):
if(not os.path.exists(dir)):
print(“error: the directory your input is not existed”)
return
if(not os.path.isdir(dir)):
print (“error: the parameter your input is not a directory”)
return
return os.path.abspath(dir)
def iskeepbyday(dir, day):
indays = false
if( day is not none) :
t = os.path.getctime(dir)
today = datetime.date.today()
createdate = datetime.date.fromtimestamp(t)
indate = today – datetime.timedelta(days = int(day))
print (createdate)
if(createdate >= indate):
indays = true
print (indays)
return indays
def iskeepbykeepfile(dir, keepfile):
needkeep = false
print (dir)
if (keepfile is not none):
try :
kf = open(keepfile,”r”)
for f in kf.readlines():
print (f)
if (dir.upper().endswith(“\\” + f.strip().upper())):
needkeep = true
kf.close()
except:
print (“error: keep file cannot be opened”)
print(needkeep)
return needkeep
def removesubfolders(dir, day, keepfile):
subdirs = os.listdir(dir)
for subdir in subdirs:
subdir = os.path.join(dir,subdir)
if ( not os.path.isdir(subdir)):
continue
print(“———————-“)
if( (not iskeepbyday(subdir, day))and (not iskeepbykeepfile(subdir, keepfile))):
print(“remove subfolder: ” + subdir)
import shutil
shutil.rmtree(subdir,true)
def foldercleanup():
(day, keepfile, dir) = getoption()
dir = precheckdir(dir)
if dir is none:
return
removesubfolders(dir,day,keepfile)
if __name__==’__main__’:
foldercleanup()
对目录下保留最后的zip文件：
代码如下:
def keeplastnumzips(num)
def extracttime(f):
return os.path.getctime(f)
zipfiles = [os.path.join(zipdir, f)
for f in os.listdir(zipdir)
if os.path.splitext(f)[1] == “.zip”]
if len(zipfiles) > num:
zipfiles.sort(key=extracttime, reverse=true)
for i in range(num, len(zipfiles)):
os.remove(zipfiles[i])