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The Ruby %r{ } expression
...t
\s # white space char
(group) # first group
(?:alt1|alt2) # some alternation
end
}x
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Postgresql 9.2 pg_dump version mismatch
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You can either install PostgreSQL 9.2.1 in the pg_dump client machine or just copy the $PGHOME from the PostgreSQL server machine to the client machine. Note that there is no need to initdb a new cluster in the client machine.
After you have finished installing ...
src/lxml/etree_defs.h:9:31: fatal error: libxml/xmlversion.h: No such file or directory
...t-devel & libxml2-devel using
sudo apt-get install libxml2-dev libxslt1-dev
After installing follow the above one
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莱昂氏unix源代码分析 PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
...分 程序交换、基本输入/输出、
块设备 109
第四部分 文件和目录、文件系统、管道 133
第五部分 面向字符的特殊文件 181
下篇 莱昂氏UNIX源代码分析
前言 207
第1章 绪论 209
1.1 UNIX操作系统 209
1.2 公用...
Difference between declaring variables before or in loop?
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edited May 25 '17 at 7:52
Sunil Kanzar
1,11111 gold badge88 silver badges2020 bronze badges
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How do I get indices of N maximum values in a NumPy array?
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How to validate an email address using a regular expression?
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How do I pick randomly from an array?
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Just use Array#sample:
[:foo, :bar].sample # => :foo, or :bar :-)
It is available in Ru...
Quick-and-dirty way to ensure only one instance of a shell script is running at a time
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