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Greenlet Vs. Threads
...to your system.
Concurrency is not parallelism
Threads vs. processes
Multiprocessing vs. threads
GIL vs. CPython
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PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
... $_SERVER docs . Do I have this right regarding which to use for my PHP scripts for simple link definitions used throughout my site?
...
How to filter files when using scp to copy dir recursively?
...
Since you can scp you should be ok to ssh,
either script the following or login and execute...
# After reaching the server of interest
cd /usr/some/unknown/number/of/sub/folders
tar cfj pack.tar.bz2 $(find . -type f -name *.class)
return back (logout) to local server and scp...
Android emulator: How to monitor network traffic?
...o filter out solely emulator traffic, since it is coming from the same src IP.
Perhaps the best way would be to set up a very bare VMware environment and only run the emulator in there, at least that way there wouldn't be too much background traffic.
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Office在线预览及PDF在线预览的实现方式大集合 - 更多技术 - 清泛网 - 专注...
...AsPDFandXPS.exe可以导出PDF文件，然后再利用免费的swftools.exe工具生成swf格式的Flash文件，网页中加载flexpaper免费开源工具（有广告）实现Flash文件的预览。
优点：
1、有效的保护的源文件及文件的复制，不可复制也是缺点。
2、源...
Regular expression that matches valid IPv6 addresses
I'm having trouble writing a regular expression that matches valid IPv6 addresses, including those in their compressed form (with :: or leading zeros omitted from each byte pair).
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大数据：用数据指导APP运营 - 资讯 - 清泛网 - 专注C/C++及内核技术
...取数据的渠道有很多，而方式基本就是自己做和使用外部工具两种方式。
自己做的话，App可以选择“埋点”、log等方式，而Web可以通过log、日志与按钮埋点等方式去做记录。
外部工具，则有很多第三方会提供服务。
获取数据...
How to sleep for five seconds in a batch file/cmd [duplicate]
Windows's Snipping tool can capture the screen, but sometimes I want to capture the screen after five seconds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.)
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Setting up FTP on Amazon Cloud Server [closed]
...at you already have an EC2 instance created and have associated an Elastic IP Address to it.
Step #1: Install vsftpd
SSH to your EC2 server. Type:
> sudo yum install vsftpd
This should install vsftpd.
Step #2: Open up the FTP ports on your EC2 instance
Next, you'll need to open up the F...
What is a non-capturing group in regular expressions?
...1).
Let's try some substitutions now. Consider the following text:
Lorem ipsum dolor sit amet consectetuer feugiat fames malesuada pretium egestas.
Now, let's use this dumb regex over it:
\b(\S)(\S)(\S)(\S*)\b
This regex matches words with at least 3 characters, and uses groups to separate th...