LianSheng197

We want to upload file to a server with POST HTTP request. We will use curl functions.

// data fields for POST request
$fields = array("f1"=>"value1", "another_field2"=>"anothervalue");

// files to upload
$filenames = array("/tmp/1.jpg", "/tmp/2.png");

LianSheng197

const linkEl = document.createElement('link');
linkEl.rel = 'prefetch';
linkEl.href = urlWithYourPreciousData;
document.head.appendChild(linkEl);

LianSheng197

<?php

function base64url_encode($data) { 
    return rtrim(strtr(base64_encode($data), '+/', '-_'), '='); 
} 

function base64url_decode($data) { 
    return base64_decode(str_pad(strtr($data, '-_', '+/'), strlen($data) % 4, '=', STR_PAD_RIGHT)); 
}

LianSheng197

Kill user tty/pts sessions in Linux

Commands

• w: show who is logged on and what they are doing
• who: show who is logged on
• tty: show current users pseudo terminal
• ps -ft pts/1: get process id for the pseudo terminal
• pkill: signal process based on name and other attributes

LianSheng197

echo "\[\033[${2:-37};60m\]${1}\[\033[0m\]"

Echo is the program echo that you can run from the terminal. (eg $ echo hello world) it works here because the output of the function is being captured and put into a string.

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LianSheng197

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.