常用学习链接

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Awk	http://awk.readthedocs.org/en/latest/
在线man	http://man.linuxde.net/
在线转换成mp3	http://tomp3.cn/
fiddler	http://qywx.gitcafe.io/2014/11/22/%E7%A7%BB%E5%8A%A8%E5%89%8D%E7%AB%AF%E5%BC%80%E5%8F%91%E5%9F%BA%E7%A1%80%E4%B8%8E%E4%BC%98%E5%8C%96/
PHP内核	http://www.php-internals.com/book/
hostsPlus	http://www.oschina.net/news/54174/hostsplus-v1-0-0
github	http://www.worldhello.net/gotgithub/index.html?hmsr=toutiao.io&utm_medium=toutiao.io&utm_source=toutiao.io
linux管道	http://mp.weixin.qq.com/s?__biz=MzAxODI5ODMwOA==&mid=401528198&idx=2&sn=be21587df0d0469e0bb62ec2ca39b30e&scene=0#rd
linux数据重定向	http://mp.weixin.qq.com/s?__biz=MzAxODI5ODMwOA==&mid=401432202&idx=2&sn=2f988bca3585c6e9e4d9e63a05900d1c&scene=0#rd
pdf转换成world	http://www.free-pdftoword.com/