alcedo

import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Arrays;

alcedo

import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Arrays;

alcedo

import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Arrays;

alcedo

import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Arrays;

alcedo

Recursive Backtracking: 
 
usually involves a for loop + a recursion. (the for loop acts as a backtracking mechanism) 
 
The requirements for a recursive solution are met in these ways. 
.The problem is made smaller by taking one step in the space - by making one move. 
.The base case occurs when the property has been fully satisfied and we arrive at the exit. 
.The partial results are combined by putting the steps together in a way that is appropriate (perhaps printing them, or returning them as a list to some other program). 
 
*important things to note: The base case is *usually* the solution to the problem. 

alcedo

AngularJS: $watch, $digest and $apply

Some Guidelines For Use:

$watch
DO use $watch in directives to update the DOM when a $scope value changes.
DON'T use $watch in a controller. It's hard to test and completely unnecessary in almost every case. Use a method on the scope to update the value(s) the watch was changing instead.
$digest/$apply
DO use $digest/$apply in directives to let Angular know you've made changes after an asynchronous call, such as a DOM event.
DO use $digest/$apply in services to let Angular know some asynchronous operation has returned, such as a WebSocket update, or an event from a 3rd party library like Facebook API.

alcedo

#!/usr/bin/python

import sys 
import os 
import datetime 
from subprocess import Popen, PIPE, call
from datetime import date, datetime, date, time

"""
Sends out an email via the unix mail command, 

alcedo

import sys
import os
import time
from datetime import datetime
import urllib2

"""
Use this function to allow applications to communicate via HTTP to the internet 
"""
def setProxy():

alcedo

### How to change permissions of all files in a dir using XARGS
[root@abc installers]# ls | xargs -Ifile chmod 777 file
[root@abc installers]# ls -rlt
total 446676
-rwxrwxrwx 1 abc abc 30537780 Oct  8 08:18 hcatalog-0.11.0.1.3.2.0-111.tar.gz
-rwxrwxrwx 1 abc abc 14492759 Oct  8 08:20 Python-2.7.5.tgz
[root@abc installers]# ls | xargs -I{} chmod 777 {}

alcedo

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console