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@justinweiss
justinweiss / filterable.rb
Last active January 30, 2025 13:06
Filterable
# Call scopes directly from your URL params:
#
# @products = Product.filter(params.slice(:status, :location, :starts_with))
module Filterable
extend ActiveSupport::Concern
module ClassMethods
# Call the class methods with names based on the keys in <tt>filtering_params</tt>
# with their associated values. For example, "{ status: 'delayed' }" would call
@sengertwd
sengertwd / provision.sh
Created January 29, 2014 07:04
This is my vagrant provision bash script
echo "This is our provisioning script"
apt-get update
apt-get install -y python-software-properties python g++ make
add-apt-repository ppa:chris-lea/node.js
apt-get update
apt-get install -y nodejs
npm install -g grunt-cli
@mycodeschool
mycodeschool / InfixToPostfix.cpp
Created December 9, 2013 05:34
Infix to Postfix conversion in C++ using stack. We are assuming that both operators and operands in input will be single character.
/*
Infix to postfix conversion in C++
Input Postfix expression must be in a desired format.
Operands and operator, both must be single character.
Only '+' , '-' , '*', '/' and '$' (for exponentiation) operators are expected.
*/
#include<iostream>
#include<stack>
#include<string>
@mycodeschool
mycodeschool / Queue_LinkedList.c
Last active May 1, 2025 09:02
Linked List implementation of Queue.
/*Queue - Linked List implementation*/
#include<stdio.h>
#include<stdlib.h>
struct Node {
int data;
struct Node* next;
};
// Two glboal variables to store address of front and rear nodes.
struct Node* front = NULL;
struct Node* rear = NULL;
@mycodeschool
mycodeschool / DoublyLinkedList.c
Created November 12, 2013 11:38
Doubly Linked List implementation in C
/* Doubly Linked List implementation */
#include<stdio.h>
#include<stdlib.h>
struct Node {
int data;
struct Node* next;
struct Node* prev;
};
@mycodeschool
mycodeschool / Queue_CircularArrayImplementation.cpp
Last active May 16, 2025 08:46
Queue - Array Implementation
/* Queue - Circular Array implementation in C++*/
#include<iostream>
using namespace std;
#define MAX_SIZE 101 //maximum size of the array that will store Queue.
// Creating a class named Queue.
class Queue
{
private:
int A[MAX_SIZE];
@mycodeschool
mycodeschool / Stack_ArrayImplementation_OOP.cpp
Created October 8, 2013 02:44
An object oriented implementation of stack using arrays in C++.
// Stack - Object oriented implementation using arrays
#include <iostream>
using namespace std;
#define MAX_SIZE 101
class Stack
{
private:
int A[MAX_SIZE]; // array to store the stack
int top; // variable to mark the top index of stack.
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active May 16, 2025 22:55
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@mrcasals
mrcasals / gist:2788529
Created May 25, 2012 14:50
Rails: Reinstall postgreSQL via brew ang pg gem on Mac OS X
$ brew uninstall postgresql
$ gem uninstall pg # ALL OF THEM
$ rm -fr /usr/local/var/postgres
$ launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
$ pg_ctl -D /usr/local/var/postgres stop -s -m fast # WE SHOULD HAVE ALL postgres SERVERS & PROCESSES STOPPED BY NOW
$ brew install postgres
$ env ARCHFLAGS="-arch x86_64" gem install pg
$ echo "DONE." >> /dev/null
@endolith
endolith / readme.md
Last active March 27, 2025 16:57
How to stream a webcam to a web browser in Ubuntu

Grr this took hours to figure out. I was trying to install MJPG-streamer and running VLC command lines and all this crap but nothing worked.

First install motion:

~> sudo apt-get install motion

Then create a config file:

~> mkdir ~/.motion

~> nano ~/.motion/motion.conf