Contents Acknowledgements Introduction Who Is This Book For? What Does This Book Cover? How This Book Is Structured What Do You Need to Use This Book? Conventions Source Code Errata xix xxi xxi xxii xxii xxv xxv xxv xxv Chapter 1: Unix Fundamentals
Originally devised to enhance web pages in Netscape 2.0, Javascr ipt is now faced with being a single-threaded language in a multimedia, multitasking, multicore world. Yet Javascr ipt has not only persevered since 1995, it’s thrived. One after the o
Less is a dynamic style sheet language to help you make your CSS code more maintainable, readable, and reusable. It provides impressive features to enhance your web development skills with complex code techniques necessary for responsive websites. T
less 工具也是对文件或其它输出进行分页显示的工具，应该说是linux正统查看文件内容的工具，功能极其强大。less 的用法比起 more 更加的有弹性。在 more 的时候，我们并没有办法向前面翻， 只能往后面看，但若使用了 less 时，可以使用 [pageup] [pagedown] 等按键的功能来往前往后翻看文件，更容易用来查看一个文件的内容！除此之外，在 less 里头可以拥有更多的搜索功能，不止可以向下搜，也可以向上搜。
1．命令格式：
less [参数] 文件
