一直在研究python編程，據圈內朋友閒聊，python應該是未來一個運維攻城獅除了shell以外必備的LINUX腳本語言，所以就硬著頭皮，按照老男孩的python視頻講座，把自己的研究成果貼出來，目前還沒學完，期待更加給力些。
PS:
1.python視頻講座很不錯，希望能繼續免費下去。。。
2.博主編程很爛，有什麼地方有問題，還請多多指教。。。
3.最近買了本PYTHON核心編程，啃書ing。。。
系統環境: Ubuntu 12.10 server 64-bit
PYTHON: Python 2.7.3
# mkdir python
# vi contact_list.txt
-------------------------
1 zhangsan IT 0001
2 lisi IT 0002
3 wangwu HR 0003
4 zhaoliu OP 0004
-------------------------
# vi staff_list.py
----------------------------------------------------
#!/usr/bin/env python
#encoding:utf-8 # 支持中文輸入
import sys
import getpass
import shutil
import commands
import time
import fileinput
staff_list = 'contact_list.txt'
# 參數配置
user = 'admin'
passwd = '123456'
s = file(staff_list)
ss = s.readlines()
a = file(staff_list,'a')
counter = 0
_counter = 0
# 認證登陸
while True:
# 計數器,超過3次強制退出
if counter <= 3:
# 空用戶名判斷
name = raw_input("please input your name: ").strip()
if len(name) == 0:
print "empty name,try again!"
continue
# 用戶名密碼判斷,密碼隱藏
# pwd = raw_input("please input your password: ")
pwd = getpass.getpass('please input your password:')
if pwd == passwd and name == user:
print "Welcome to login,%s" %name
else:
print "name or password is not valid,please try again!"
counter +=1
continue
break
else:
print "exceeded 3 times user login..exit the script"
sys.exit()
# 選擇增刪改查
while True:
item = raw_input('''\033[36;1mWelcome to login %s, what do you want to do?
-----------------------
press 'p' for print
press 'a' for add
press 'd' for delete
press 'u' for update
press 's' for select
press 'q' for quit
-----------------------
please make your choise: \033[0m''' % user)
# 打印所有
if item == 'p':
while True:
user_select = open(staff_list,'r')
s_ = user_select.read()
print ' '
print '\033[32;1mThe content of the file\033[0m '
print '\033[32;1m--------------------------\033[0m '
print s_
print '\033[32;1m--------------------------\033[0m '
print ' '
break
# 增加
elif item == 'a':
while True:
user_add_num = raw_input(("\033[32;1mplease input your number: \033[0m ").strip())
user_add_name = raw_input(("\033[32;1mplease input your name: \033[0m ").strip())
user_add_dept = raw_input(("\033[32;1mplease input your department: \033[0m ").strip())
user_add_id = raw_input(("\033[32;1mplease input your id: \033[0m ").strip())
user_item = '%s\t%s\t%s\t%s' %(user_add_num,user_add_name,user_add_dept,user_add_id)
a.write("\n%s" %user_item)
a.flush()
print "\033[32;1mAdd item:\033[0m"
print "\033[32;1m------------------\033[0m"
print user_item
print "\033[32;1m------------------\033[0m"
print "\033[32;1mAdded successful!\033[0m"
# 刪除空行
del_blank_in = open('contact_list.txt','r')
del_blank_out = open('contact_list_new.txt','w')
lines = del_blank_in.readlines()
for blank in lines:
if blank.split():
del_blank_out.writelines(blank)
del_blank_in.close()
del_blank_out.close()
# 覆蓋原文件
shutil.move('contact_list_new.txt','contact_list.txt')
user_add_choise = raw_input('press Q for quit or press any key to continue: ')
if user_add_choise == 'Q':
print 'bye!'
break
# 刪除
elif item == 'd':
while True:
user_del_input = raw_input("please input sth to delete: ").strip()
if len(user_del_input) == 0:
print "empty input,try again!"
else:
# 輸入值與源文件比對，有則丟棄，沒有則添加到新文件，最後新文件覆蓋源文件，實現刪除功能
with open('contact_list.txt','r') as ff:
with open('contact_list.txt.new','w') as gg:
for line in ff.readlines():
if user_del_input not in line:
gg.write(line)
if user_del_input in line:
print "\033[32;1mDelete item:\033[0m"
print "\033[32;1m------------------\033[0m"
print " %s " %line
_counter += 1 # 計數器,判斷輸入值命中次數
print "\033[32;1m------------------\033[0m"
print "\033[32;1mDeleted successful!\033[0m"
if _counter == 0:
print 'nothing delete!'
shutil.move('contact_list.txt.new','contact_list.txt')
# 退出刪除
user_del_input_quit = raw_input("\033[32;1mpress Q for quit or press any key to continue? \033[0m").strip()
if user_del_input_quit == 'Q':
break
# 查詢
elif item == 's':
while True:
match_yes = 0
#輸入判斷，忽略空格輸入,加入顏色
user_select_input = raw_input("\033[32;1mplease input sth to search:\033[0m ").strip()
contact_file = file (staff_list)
if len(user_select_input) == 0:
print "empty input,try again!"
else:
while True:
line = contact_file.readline()
if len(line) == 0:
break
if user_select_input in line:
match_yes = 1
print line
else:
pass
if match_yes == 0 :
print "No match item found"
# 退出查詢
user_select_input_quit = raw_input("\033[32;1mpress Q for quit or press any key to continue? \033[0m").strip()
if user_select_input_quit == 'Q':
break
# 修改
elif item == 'u':
while True:
# 輸入為空以及匹配查詢內容判斷
user_update_input_from = raw_input("\033[32;1mplease search sth to update: \033[0m").strip()
update_match = 0
update_file = file(staff_list).readlines()
for n_ in range(len(update_file)):
if user_update_input_from in update_file[n_]:
update_match = 1
else:
pass
if update_match == 0:
print "No match item found"
elif len(user_update_input_from) == 0:
print "empty input,try again!"
else:
# 將匹配到的字符修改為新字符
while True:
user_update_input_to = raw_input("\033[32;1mupdate %s to what?\033[0m " %(user_update_input_from)).strip()
if len(user_update_input_to) == 0:
print "empty input,try again!"
else:
for line_ in fileinput.input(staff_list,inplace = 1,backup='.bak'):
line_ = line_.replace(user_update_input_from,user_update_input_to)
print line_
# 打印修改字符的行
print "\033[32;1mupdate item:\033[0m"
output_ = commands.getoutput("diff contact_list.txt contact_list.txt.bak|grep '^>.*' | sed 's/^>//g'")
print "\033[32;1m---------------------------\033[0m"
print output_
print "\033[32;1m---------------------------\033[0m"
print "\033[32;1mupdate successfully!\033[0m"
# 刪除空行
del_blank_in = open('contact_list.txt','r')
del_blank_out = open('contact_list_new.txt','w')
lines = del_blank_in.readlines()
for blank in lines:
if blank.split():
del_blank_out.writelines(blank)
del_blank_in.close()
del_blank_out.close()
# 覆蓋原文件
shutil.move('contact_list_new.txt','contact_list.txt')
break
# 退出更新
user_update_input_quit = raw_input("\033[32;1mpress Q for quit or press any key to continue? \033[0m").strip()
if user_update_input_quit == 'Q':
break
# 退出
elif item == 'q':
print 'bye!'
sys.exit()
else:
print "\033[31;1mnot a valid key word\033[0m"
time.sleep(1)