for k in $(ls *.jpg); do convert -resize 800 -quality 80 $k r800-$k; done

<%=date_select(:date,'',:start_year => 1950,:include_blank => false, :default => { :year => '1970' })%>

def convert_date(obj) 
  return “#{obj[‘(1i)’]}-#{obj[‘(2i)’]}-#{obj[‘(3i)’]}” 
end

//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com

class JS{
	//generic and maybe not the desired results xD
	function value($o){
		if($o === null)
			return 'null';
		$t = strtolower(gettype($o));
		if($t == 'string' && is_numeric($o) && ($o[0] || strlen($o) == 1) || in_array($t, array('double', 'integer')))
			$t = 'number';
		elseif($t == 'string' && preg_match('@^\d{4}(?:-\d{1,2}){1,2}(?: (?:\d{1,2}:){2}\d{1,2})?$@', $o)) //strtotime works also with "strange" values strtotime('x')
			$t = 'date';
		elseif($t == 'array' && ($c = count($k = array_keys($o))) && $k !== range(0, $c - 1))
			$t = 'object';
		elseif(!in_array($t, array('boolean', 'string', 'array', 'object')))
			$t = 'string';
		$t = 'from' . $t;
		return self::$t($o);
	}
	function fromNumber($o){
		return +$o . '';
	}
	function fromObject($o){
		$r = array();
		foreach($o as $n => $v)
			$r[] = self::fromString($n) . ':' . self::value($v);
		return '{' . implode(',', $r) . '}';
	}
	function fromBoolean($o){
		return $o ? 'true' : 'false';
	}
	//$q = should quote? 
	//$c = char that will be used to quote
	function fromString($o, $q = true, $c = '"'){
		return ($p = $q ? $c : '') . preg_replace('/\r\n|\n\r|\r/', '\n', str_replace($c, '\\' . $c, str_replace('\\', '\\\\', $o))) . $p;
	}
	function fromArray($o){
		$s = '';
		foreach($o as $v)
			$s .= ($s ? ',' : '') . self::value($v);
		return '[' . $s . ']';
	}
	function fromDate($o){
		(is_numeric($o) && $o = +$o) || ($o = strtotime($o)) > 0 || ($o = mktime());
		$o = explode(',', date('Y,n,j,G,i,s', $o));
		foreach($o as $i => $v)
			$o[$i] = +$v;
		return 'new Date(' . implode(',', $o)  . ')';
	}
}

$o = new stdClass;
$o->abc = 123;
echo implode("\n<br />", array(
	JS::value('1984-07-22 11:30:12'),
	JS::value('Test'),
	JS::value(1234),
	JS::value(true),
	JS::value(array(1,2,3)),
	JS::value(array('lala' => 'x')),
	JS::value($o)
));

for img in $(ls *.png); do convert $img -resize 75% smaller-$img; done;

//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com/geral/utf-8 [v1.0]

UTF8 = {
	encode: function(s){
		for(var c, i = -1, l = (s = s.split("")).length, o = String.fromCharCode; ++i < l;
			s[i] = (c = s[i].charCodeAt(0)) >= 127 ? o(0xc0 | (c >>> 6)) + o(0x80 | (c & 0x3f)) : s[i]
		);
		return s.join("");
	},
	decode: function(s){
		for(var a, b, i = -1, l = (s = s.split("")).length, o = String.fromCharCode, c = "charCodeAt"; ++i < l;
			((a = s[i][c](0)) & 0x80) &&
			(s[i] = (a & 0xfc) == 0xc0 && ((b = s[i + 1][c](0)) & 0xc0) == 0x80 ?
			o(((a & 0x03) << 6) + (b & 0x3f)) : o(128), s[++i] = "")
		);
		return s.join("");
	}
};

var s = "aáéíóúe";
document.write(
	('UTF8.encode("' + s + '") = ').bold(), UTF8.encode(s), "<br />",
	('UTF8.decode(UTF8.encode("' + s + '"))) = ').bold(), UTF8.decode(UTF8.encode(s))
);

def date_add(sdate='', unit='',i=0)

  sdate[/(\d+)\/(\d+)\/(\d+)\s(\d+):(\d+):(\d+)/]
  iyear = $3.to_i; imonth = $2.to_i; iday = $1.to_i; ihour = $4.to_i; imin = $5.to_i; isec = $6.to_i
  
  case  unit
    when 'days'
      t1 = Time.local(iyear,imonth,iday,ihour,imin,isec)
      t1 += (60 * 60 * 24 * i)
    when 'weeks'
      t1 = Time.local(iyear,imonth,iday,ihour,imin,isec)
      t1 += (60 * 60 * 24 * 7 * i) 
    when 'months'
      imonth += i
      if imonth < 12 then
        t1 = Time.local(iyear,imonth+i,iday,ihour,imin,isec)
      else
        t1 = Time.local(iyear+=1,imonth -12,iday,ihour,imin,isec)
      end
    when 'quarter'
      imonth += 3
      if imonth <= 12 then
        t1 = Time.local(iyear,imonth,iday,ihour,imin,isec)
      else
        t1 = Time.local(iyear+=1,imonth - 12,iday,ihour,imin,isec)
      end    
    when 'years'
      t1 = Time.local(iyear+i,imonth,iday,ihour,imin,isec)
    else
      raise 'not a valid date unit'
  end
  t1
end

date_add("17/03/2008 17:48:00",'months',2)

tidy -asxhtml -numeric < index.html > index.xml

#add this to environment.rb
#call to_iso on any UTF8 string to get a ISO string back
#example : "Cédez le passage aux français".to_iso

class String
  require 'iconv' #this line is not needed in rails !
  def to_iso
    Iconv.conv('ISO-8859-1', 'utf-8', self)
  end
end

mencoder video.mp4 -ovc lavc -vf scale=123:100 -oac lavc -o video.avi
ffmpeg -i video.avi -ac 1 audio1.mp3 

y = 'testing'.scan(/./)
y.each do |c|
	puts c
end