linux指南，帮助新手快速入门，linux开发利器-linux guide to help novices get started quickly, linux development tool

chm文档，共搜集316个Linux命令，可通过目录查看学习，也可通过搜索来得到具体某一个命令的功能解释-CHM documents, collected 316 Linux commands, can through the catalog view to learn, can also be through the search to get a specific command function explanation

netcat在windows和Linux下使用方法，简单醒目，适合新人上手-netcat in windows and Linux, use, simple eye-catching, suitable for newcomers to get started