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Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...分别是Alfred Aho、Brian Kernighan、Peter Weinberger。gawk是awk的GNU版本，它提供了Bell实验室和GNU的一些扩展。下面介绍的awk是以GUN的gawk为例的，在linux系统中已把awk链接到gawk，所以下面全部以awk进行介绍。
2. awk命令格式和选项
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分布式系统的事务处理 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...个Master都提供read-write服务。这个模型是Master-Slave的加强版，数据间同步一般是通过Master间的异步完成，所以是最终一致性。 Master-Master的好处是，一台Master挂了，别的Master可以正常做读写服务，他和Master-Slave一样，当数据没有被...
正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...e 30 Minute Regex Tutorial。由于评论里有过长的URL,所以本页排版比较...
来园子之前写的一篇正则表达式教程，部分翻译自codeproject的The 30 Minute Regex Tutorial。
由于评论里有过长的URL,所以本页排版比较混乱,推荐你到原处...
What are JavaScript's builtin strings?
...that piece of code just for fun in order to send it to my wife on February 14 :) Having only Chrome installed on the laptop I had no options to check how it works in Firefox and IE. Moreover, I haven't really expected that toString() representation of build-in methods might look differently in other...
6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术
...要动用C++...下面的六个程序片段主要完成这些事情：
1、输出Hello, World
2、混乱C语言的源代码
下面的所有程序都可以在GCC下编译通过，只有最后一个需要动用C++的编译器g++才能编程通过。
hello1.c
#define _________ }
#define ...
Fastest way to determine if an integer's square root is an integer
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Regular expression that matches valid IPv6 addresses
...section 2.2 of rfc5952)
link-local IPv6 addresses with zone index (section 11 of rfc4007)
IPv4-Embedded IPv6 Address (section 2 of rfc6052)
IPv4-mapped IPv6 addresses (section 2.1 of rfc2765)
IPv4-translated addresses (section 2.1 of rfc2765)
IPv6 Regular Expression:
(([0-9a-fA-F]{1,4}:){7,7}[0-...
User recognition without cookies or local storage
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Find unique rows in numpy.array
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As of NumPy 1.13, one can simply choose the axis for selection of unique values in any N-dim a...
How to convert numbers between hexadecimal and decimal
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