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How to do a recursive find/replace of a string with awk or sed?
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find /home/www \( -type d -name .git -prune \) -o -type f -print0 | xargs -0 sed -i 's/subdomainA\.example\.com/subdomainB.example.com/g'
-print0 tells find to print each of the results separated by a null character, rather than a new line. In the unlikely...
The tilde operator in Python
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It is a unary operator (taking a single argument) that is borrowed from C, where all data types are just different ways of interpreting bytes. It is the "invert" or "complement" operation, in which all the bits of the input data are reversed.
In Python, for integers, the bits of t...
Closure in Java 7 [closed]
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Here is Neal Gafter's blog one of the pioneers introducing closures in Java. His post on closures from January 28, 2007 is named A Definition of Closures On his blog there is lots of information to get you started as well as videos. An he...
代码块超过1.2w编译apk报错问题 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
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com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract long com.google.appinventor.shared.rpc.project.ProjectService.save(java.lang.String,java.util.List) throws com.google.appinventor.shared.rpc.InvalidSessionException,com.google.appinventor.shared.rpc.BlocksTrunca...
How to properly seed random number generator
...of course if you're setting the seed to the time in a fast loop, you'll probably call it with the same seed many times.
In your case, as you're calling your randInt function until you have a different value, you're waiting for the time (as returned by Nano) to change.
As for all pseudo-random libr...
How to get city name from latitude and longitude coordinates in Google Maps?
How might I obtain the city name in Google Maps if I have latitude and longitude coordinates of a town or area?
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How to select only 1 row from oracle sql?
I want to use oracle syntax to select only 1 row from table DUAL . For example, I want to execute this query:
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Windbg Step 2 分析程序堆栈实战 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Windbg Step 2 分析程序堆栈实战转载+整理http: www.cnblogs.com killmyday#include"stdafx.h"#include<tchar.h>#ifdef_UNICODE#define_ttol_wtol#else#define_ttolatol#e...转载+整理 http://www.cnblogs.com/killmyday
#include "stdafx.h"
#include <tchar.h>
#ifdef _UNICODE
#define _tt...
How do I tidy up an HTML file's indentation in VI?
How do I fix the indentation of his huge html files which was all messed up?
11 Answers
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SQL left join vs multiple tables on FROM line?
Most SQL dialects accept both the following queries:
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