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How to check if a file is empty in Bash?
I have a file called diff.txt. Want to check if it is empty. Did something like this but couldn't get it working.
10 Answe...
E731 do not assign a lambda expression, use a def
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Scala best way of turning a Collection into a Map-by-key?
If I have a collection c of type T and there is a property p on T (of type P , say), what is the best way to do a map-by-extracting-key ?
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How to find the kth largest element in an unsorted array of length n in O(n)?
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A quick Google on that ('kth largest element array') returned this: http://discuss.joelonsoftware.com/default.asp?interview.11.509587.17
"Make one pass through tracking the three largest values so far."
(it was specifically for 3d largest)
and this answer:
Build a heap/priority queue. ...
How can I export the schema of a database in PostgreSQL?
...computer broke down but fortunately I backed up
the folder C:\Program Files\PostgreSQL.
8 Answers
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项目管理实践教程一、工欲善其事，必先利其器【Basic Tools】 - 项目管理 -...
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1.VisualSVN Server，最新版本是1.6.1，你可以在这里下载：
http://www.visualsvn.com/files/VisualSVN-Server-1.6.1.msi
VisualSVN Server，最新更新版本是1.6.2，你可以在这里下载：
http://www.visualsvn.com/files/VisualSVN-Server-1.6.2.msi
VisualSVN Server Documen...
How do you loop in a Windows batch file?
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FOR %%A IN (list) DO command parameters
list is a list of any elements, separated by either spaces, commas or semicolons.
command can be any internal or external command, batch file or even - in OS/2 and NT - a list of commands
paramet...
How can I use Spring Security without sessions?
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In Spring Security 3 with Java Config, you can use HttpSecurity.sessionManagement():
@Override
protected void configure(final HttpSecurity http) throws Exception {
http
.sessionManagement()
.sessionCreationPolicy(SessionCreationPolicy.STATELESS);
}
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How to clear the interpreter console?
...lly keep a console window open with the Python interpreter running to test commands, dir() stuff, help() stuff , etc.
36...
top命令使用详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...个人定制文件中进行设定.
top [-] [d delay] [p pid] [q] [c] [C] [S] [s] [i] [n iter] [b]
p 仅监视进程给定的进程ID
d 指定每两次屏幕信息刷新之间的时间间隔。当然用户可以使用s交互命令来改变之。
q 该选项将使top没有任何延迟的进行刷...