Get current date and time in Python

import datetime

now = datetime.datetime.now()

print
print "Current date and time using str method of datetime object:"
print str(now)

print
print "Current date and time using instance attributes:"
print "Current year: %d" % now.year
print "Current month: %d" % now.month
print "Current day: %d" % now.day
print "Current hour: %d" % now.hour
print "Current minute: %d" % now.minute
print "Current second: %d" % now.second
print "Current microsecond: %d" % now.microsecond

print
print "Current date and time using strftime:"
print now.strftime("%Y-%m-%d %H:%M")

print
print "Current date and time using isoformat:"
print now.isoformat()

Results:

Current date and time using str method of datetime object:
2014-09-26 16:34:40.278298

Current date and time using instance attributes:
Current year: 2014
Current month: 9
Current day: 26
Current hour: 16
Current minute: 34
Current second: 40
Current microsecond: 278298

Current date and time using strftime:
2014-09-26 16:34

Current date and time using isoformat:
2014-09-26T16:34:40.278298

References :

http://www.saltycrane.com/blog/2008/06/how-to-get-current-date-and-time-in/

Subtract time in Python

import datetime
print datetime.datetime.now()
print datetime.datetime.now() - datetime.timedelta(minutes=2)
print datetime.datetime.now() - datetime.timedelta(seconds=10)
print datetime.datetime.now() - datetime.timedelta(milliseconds=400)
el@dev ~ $ python test.py
2014-11-26 06:47:07.179411
2014-11-26 06:45:07.179538
2014-11-26 06:46:57.179581
2014-11-26 06:47:06.779614

References
http://stackoverflow.com/questions/13897246/python-time-subtraction

Cisco cheat sheet 1

#1: The “?”

#2: show running-configuration

#3: copy running-configuration startup-configuration

#4: show interface

#5: show ip interface

#6: config terminal, enable, interface, and router

example :

configure terminal
interface fastEthernet 0/0
ip address 10.0.0.1 255.0.0.0
no shutdow
exit

#7: no shutdown

#8: show ip route

#9: show version

#10: debug