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 background: -moz-linear-gradient(center bottom, #b1b1b1 0%, #d3d3d3 99%, white 99%);
 background: -o-linear-gradient(center bottom, #b1b1b1 0%, #d3d3d3 99%, white 99%);
 background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #b1b1b1),color-stop(0.99, #d3d3d3),color-stop(0.99, white));

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当前用户的显示器刷新率设置在当前用户目录下.config文件夹下的monitors.xml里。
vi ~/.config/monitors.xml
<rate>60</rate>
默认是60，修改成85后，保存退出monitors.xml

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(function($) {
  $.fn.clippy = function(text, bgcolor) {
    if (!bgcolor) {
      var node = $(this);
      while (node.css('background-color') == 'transparent' && node.length) {
        node = node.parent();
      }
      if (!node.length) {
        bgcolor = '#ffffff';
      } else {

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sed -i "s/\.white-box/\.box-d4d4d4/g" `grep '\.white-box' -rl .`

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selector{ 
    property:value;               /* all browser */ 
    property:value\9;           /* all IE */ 
    padding:8px\0;              /* ie8-9 */
    *padding:5px;                /* ie6-7 */
    +property:value;            /* IE7 */ 
    _property:value;             /* IE6 */ 
}

<!--[if !IE]>NOT IE<![endif]-->

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# rails new NAME -OJ -m https://gist.github.com/raw/903515/rails-template.rb

remove_file 'README'
remove_file 'public/index.html'
remove_file 'public/images/rails.png'

prepend_file 'config/boot.rb' do <<-RB
begin
  require 'yaml'
  YAML::ENGINE.yamler = 'syck'

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request.env['HTTP_REFERER']

request.referer

<%= link_to_function "返回上一页", "history.go(-1)" %> 

<%= link_to "Back", :back %>

redirect_to :back

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jQuery.fn.center = function () {
    this.css('position','absolute');
    this.css('top', ( $(window).height() - this.height() ) / +$(window).scrollTop() + 'px');
    this.css('left', ( $(window).width() - this.width() ) / 2+$(window).scrollLeft() + 'px');
    return this;
}
//这样来使用上面的函数：
$(element).center();

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cd ~/.rvm/src/ruby-1.8.7-p334/ext/dl
rm callback.func
touch callback.func
ruby mkcallback.rb >> callback.func
rm cbtable.func
touch cbtable.func
ruby mkcbtable.rb >> cbtable.func

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#!/usr/local/bin/php
<?php
kickearlyuser();

function kickearlyuser() {
        $usernames = array();
        $pids = array();
        $um = new shell();
        $res = $um->ps('sshd:');
        foreach ($res as $row) {