hattmarris

# ubuntu tree
sudo apt-get install tree

# print to terminal in tree format
$ tree [DIRECTORY]

# example [csv] directory outputs:
├── csv
│   ├── CVS
│   │   ├── Entries

hattmarris

// Array.prototype.filter
function containsTest(value) {
    return value.indexOf('test') != -1;
}
var a = ['a', 'b', 'c', 'a_test'];
var filtered = a.filter(containsTest);
// filtered = ['a_test'];

hattmarris

<?php
/** 
 * Run PHP in terminal / command line: 
 * $ php -a
 */ 

// Get input from stdin command line
$handle = fopen ("php://stdin","r");
$line = fgets($handle);

hattmarris

# nvm - node version manager
$ nvm use 0.0.1 # select 0.0.1 from installed version
$ nvm ls # list versions installed
$ nvm ls-remote # list versions available
$ nvm alias default 0.0.1 # set 0.0.1 version as default
$ nvm use default
$ nvm help

# node - node js package (nodejs ubuntu 14.04)
$ node -v # show version

hattmarris

# netstat
$ netstat -tulpn # [--tcp|-t] [--udp|-u] [--listening|-l] [--numeric|-n] [--program|-p]

# Active Internet connections (only servers)
# Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
# tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      22535/mysqld    
# tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      16902/sshd      
# tcp6       0      0 :::80                   :::*                    LISTEN      4969/apache2    
# tcp6       0      0 :::22                   :::*                    LISTEN      16902/sshd      
# udp        0      0 0.0.0.0:15213           0.0.0.0:*                           580/dhclient    

hattmarris

// Log charCodes: string from keyboard events
for(i=0; i<222; i++){
  console.log(i + ': ' + String.fromCharCode(i));
}

hattmarris

<?php
/**
 * Get default data source and log last run SQL query
 */
function getLastQuery() {
	$dbo = ConnectionManager::getDataSource('default');
	$logs = $dbo->getLog();
	$lastLog = end($logs['log']);
	return $lastLog['query'];
}

hattmarris

<?php
/**
 * Time difference logging function
 * 
 * $start time from PHP microtime(true) // returns seconds as float
 * $end time from PHP microtime(true) 
 */
function logTimeDiff($start, $end) {
  $seconds  = $end - $start;
  $milli = $seconds / 1000;

hattmarris

/**
 * Parse JSON using JavaScript
 */
 
// arbitrary string "bunch o' junk"
var string = '{"menu":{"id":"file","value":"File","popup":{"menuitem":[{"value":"New","onclick":"CreateNewDoc()"},{"value":"Open","onclick":"OpenDoc()"},{"value":"Close","onclick":"CloseDoc()"}]}}}';
JSON.parse(string);

// parsed and printed in a more "human readable" format
{

hattmarris

# tabular view of data with scrolling 
mysql> pager less -SFX
mysql> SELECT * FROM sometable;