import re
str="""
dirty_datas127.0.0.1dsadsadasdasdas
dirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdas

"""
ends=re.findall("(((2(5[0-5]|[0-4]\d))|[0-1]?\d{1,2})(\.((2(5[0-5]|[0-4]\d))|[0-1]?\d{1,2})){3})",str,re.S)
for end in ends:
	print(end[0])

查看所有与Python命令 ls /usr/bin/python* -l 

创建新命令python至python ln -s /usr/local/python27/bin/python2.7 /usr/bin/python

自改分辨率 xrandr -s 1280x800

查看端口被谁占用 sudo lsof -i:port  

解除端口占用 sudo kill -9 pid

漏洞库集合：