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How can I select random files from a directory in bash?
I have a directory with about 2000 files. How can I select a random sample of N files through using either a bash script or a list of piped commands?
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Difference between File.separator and slash in paths
What is the difference between using File.separator and a normal / in a Java Path-String?
14 Answers
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地图组件做App到底怎么选？我踩完6个坑，帮你总结了这份横评 - App应用开发...
...个，Map组件光属性就三十多个，还有7个子组件（Marker、Circle、LineString、Polygon、Navigation、FeatureCollection、Rectangle），事件多到眼花。
但地图功能又是App开发中最高频的需求之一——附近的人、店铺导航、轨迹记录、区域划分...
How to convert a Java 8 Stream to an Array?
What is the easiest/shortest way to convert a Java 8 Stream into an array?
10 Answers
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How to export/import PuTTy sessions list?
...-sessions.reg" HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\Sessions
All settings:
regedit /e "%USERPROFILE%\Desktop\putty.reg" HKEY_CURRENT_USER\Software\SimonTatham
Powershell:
Only sessions:
reg export HKCU\Software\SimonTatham\PuTTY\Sessions ([Environment]::GetFolderPath("Desktop") + "\...
MSBuild doesn't copy references (DLL files) if using project dependencies in solution
... Solution #2 as shown above will work unless you have the 'Optimize Code' setting checked in Visual Studio. In that case, it will still exclude the dll. I added one more line to override its "optimization". Console.WriteLine(dummyType.FullName);
– JasonG
Ju...
Proper way to return JSON using node or Express
...e something like JSON.stringify(anObject, null, 3)
It's important that you set the Content-Type header to application/json, too.
var http = require('http');
var app = http.createServer(function(req,res){
res.setHeader('Content-Type', 'application/json');
res.end(JSON.stringify({ a: 1 }));
}...
How do I find all files containing specific text on Linux?
I'm trying to find a way to scan my entire Linux system for all files containing a specific string of text. Just to clarify, I'm looking for text within the file, not in the file name.
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rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
...the production environment, if you want use live compiling (compile your assets during runtime) in production you must set the config.assets.compile to true.
# config/environments/production.rb
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config.assets.compile = true
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You can use this option to fallback to Sprockets when you are usin...