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Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

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Command Execution

exec           - Returns last line of commands output
passthru       - Passes commands output directly to the browser
system         - Passes commands output directly to the browser and returns last line
shell_exec     - Returns commands output
\`\` (backticks) - Same as shell_exec()
popen          - Opens read or write pipe to process of a command
proc_open      - Similar to popen() but greater degree of control
pcntl_exec - Executes a program

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#!/bin/bash

versions=("5.6.24" "7.0.9")

function say()
{
  value=$1
  echo -e "php-$value\n"
}

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<?php

abstract class Database
{
    public function __construct()
    {
        $this->connect();
    }

    abstract public function connect();

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#!/bin/bash
# Program:
#   利用專案樣版在 Subversion 中建立一個 Zend Framework 專案
# History:
#   2011/11/03    Jace Ju   First release
# Usage:
#   Create template of project at first time:
#    > cd /path/to/project_template
#    > mkdir branches
#    > mkdir tags

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<?php

trait Singleton
{
    protected static $_instance = null;

    public static function getInstance()
    {
        if (static::$_instance === null
                || !(static::$_instance instanceof static)) {

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XSS 上課筆記

OWASP

1. Injection
2. Broken Authentication and Session Management
3. XSS

Devcore

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First install pip for Python2. Download the get-pip.py file from https://bootstrap.pypa.io/get-pip.py
$ cd <download location>
$ sudo -H python ./get-pip.py

Installing pip also installs Python3
To run Python3
$ python3

Install pip3 by just executing the same file as in the step above, but this time using Python3
$ sudo -H python3 ./get-pip.py

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#!/bin/sh
#
# Copyright (C) 2017 Upper Stream.
#
# See the bottom of this file for licensing conditions.
#

#set -x
set -e

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1) Generate a private key and certificate signing request:

openssl genrsa -out ios_distribution.key 2048
openssl req -new -key ios_distribution.key -out ios_distribution.csr -subj '/emailAddress=me@example.com, CN=Example, C=US'

2) Upload CSR to apple at: https://developer.apple.com/account/ios/certificate/create
   - choose Production -> App Store and Ad Hoc

3) Download the resulting ios_distribution.cer, and convert it to .pem format: