pranavgarg

Changing from Wind Authentication to CAS Server running wind protocol is just as easy as changing domain names for login and validation.

Wind Authentication:
---------------------------------------------------------
LoginURL: https://wind.columbia.edu/login?service=[Optional]&destination=[destination-URI]
ValidationURL: https://wind.columbia.edu/validate?ticketid=[service-ticket]

[service] parameter is not really required on CAS. Even if you pass it would not matter. 

Switching to CAS Server running Wind protocol:

pranavgarg

"""
Before filename: recoded_videos%2Falgs4partI-64.mp4 
new_file:        64.mp4 
"""

import os
directory = '<DIR NAME>'
pattern_to_be_excluded = '.mp4'
pattern_to_be_excluded_2 = '-'
k = os.walk(directory) 

pranavgarg

1. Conditionals & Operators
coffeescript              			Javascript
------------            			-------------
  == is                    			===
  != isnt                   			!==
  not                       			!
  and                       			&&
  or                        			||
  true yes on               			true
  false no off              			false

pranavgarg

###
  Install:  meteor add audit-argument-checks
  Description: This package will do type checking for the arguments.
  E.g.  Publish function sending data back based on the username
###
Meteor.publish({
  "posts": (currentUserName) ->
    check currentUserName, String  #this line does the typechecking. If missed following error thrown Exception from sub posts id .. Did not check() all arguments during publisher
    Posts.find({author: currentUserName}).fields({})
  })

pranavgarg

# lists the volumes
$> lsblk
# this lists all the volumes
xvda1 202:1    0     8G  0 disk /
xvdb  202:16   0   400G  0 disk /mnt

$> free -s  /dev/xvdb
#would return data is its not yet formatted and doesn't have any data
#otherwise would return the block and storage type ext4

pranavgarg

##INTRO
Docker is based on lxc (Linux Containers) which helps provide virtualization on the host OS. 
Its lightweight and ease of use allows it to succeed over VMware virtualization.

##Useful commands
1. **docker ps** - Lists containers.
2. **docker logs** - Shows us the standard output of a container.
3. **docker stop** - Stops running containers.
4. **docker images** - Lists all the docker images

pranavgarg

class Node:
  def __init__(self, value):
    self._value = value
    self._next = None
  def __repr__(self):
    return ("Node({!r})".format(self._value))

def reverseList(head):
  '''
  reverses a linklist. 

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a = ['1','2','3','4','5','6','7','8','9']

def josepheus(int_list, skip):
  skip = skip - 1 #list starts with 0 index
  idx = 0
  output = []
  while len(int_list)>0:
    idx = (skip+idx)%len(int_list)
    k = int_list.pop(idx)
    output.append(k)

pranavgarg

def flatten(l):
   for el in l:
    if isinstance(el, collections.Iterable) and not isinstance(el, basestring):
      for sub in flatten(el):
         yield sub
    else:
      yield el

assert [i for i in flatten([1,2,[3,4]])] == [1,2,3,4]

pranavgarg

Keybase proof

I hereby claim:

• I am pranavgarg on github.
• I am pgarg (https://keybase.io/pgarg) on keybase.
• I have a public key whose fingerprint is 70F8 1545 7515 F45C 3441 2FA6 BEFA 817E EB70 BEBE

To claim this, I am signing this object: