gongbaochicken

#I use grep almost every day. Such a powerful tool should be used in a very skillfull way. 
#I want to open this gist for notetaking when I meet new commands.  

#search in a folder in recursive way
grep -r "task" ../src

#ignore the case
grep -r -i "TaSk" ../src

#search for a whole word

gongbaochicken

#!/usr/bin/env python

import sys
import time

from mininet.net import Mininet
from mininet.node import Host, OVSSwitch, Controller, RemoteController
from mininet.cli import CLI
from mininet.log import setLogLevel, info
from mininet.link import Link, Intf, TCLink