Solais/linux系統管理中，針對帳號系統到期日的設定，
通常可以用GUI 畫面來設定某年月某日到期
但有時候遇到需要用自動化機制，比如大量開帳號，
想要通通設定這些帳號都在180天後過期
這個模組就幫得上來囉！
遇到大量要開帳號，就用程式呼叫這個模組就好囉! 一點都不需要動到原本的開帳號程式喔！
模組使用方法：
假設模組名稱存成setexpire
# setexpire --account user1 --livedays 180
-> 就會把user1 這個帳號設為從今天之後180天後到期！
-> 當燃也可以短參數來達成
# setexpire -a user1 -d 180 --> 一樣的產出，只是設定參數比較短。
# setexpire --help --> 當然我也有加入Help 的功能喔！不用記指令，隨時Help 一下就OK！
Usage: setexpire -a [accountname] -d [livedays]
Set Account live-days since today , Program Author : ES/Fwwang
Options:
--version show program's version number and exit
-h, --help show this help message and exit
-a ACCOUNT, --account=ACCOUNT
Which account do you want to set expire day
-d LIVEDAYS, --livedays=LIVEDAYS
The livedays means :It will expire after xx days since
today
以下為 Script ( 引用者請註明本出處）
#!/usr/bin/env python
from glob import *
import re
import time
import datetime
import optparse
import sys
import os
shadowfile="/etc/shadow"
def main():
p = optparse.OptionParser(description="Set Account live-days since today , Program Author : ES/Fwwang ",
version="%prog Version:1.0 , 2009/05/08",
usage="%prog -a [accountname] -d [livedays]")
p.add_option('--account', '-a',help="Which account do you want to set expire day ")
p.add_option('--livedays','-d',help="The livedays means :It will expire after xx days since today")
options, arguments = p.parse_args()
account=options.account
if len(arguments) >= 1:
p.print_usage()
sys.exit(0)
if options.account == None :
p.print_usage()
sys.exit(0)
if options.livedays == None :
p.print_usage()
sys.exit(0)
livedays=int(options.livedays)
today = datetime.date.today()
startday = datetime.date(1970,1,1)
rangetmp= today - startday
rangedays = int(rangetmp.days)
expiredays = str(rangedays+livedays)
fileList = glob(shadowfile)
p1 = re.compile(r'^%s:' %account, )
p2 = re.compile(r':[0-9]+:$', )
p3 = re.compile(r'::$', )
r1 = account
r2 = ":%s:" % expiredays
cfg = open('/etc/shadow.new', 'wu')
for filename in fileList:
for line in file(filename):
m1=p1.match(line)
m2=p2.search(line)
m3=p3.search(line)
if m1 == None:
print >>cfg,p1.sub(r1,line),
else:
if m2 == None:
print >>cfg,p3.sub(r2,line),
else:
print >>cfg,p2.sub(r2,line),
cfg.close()
os.remove('/etc/shadow')
os.rename("/etc/shadow.new","/etc/shadow")
print "The account %s will expire after %s Days" %(account ,livedays)
if __name__ == '__main__':
main()
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