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Delete files older than 15 days using PowerShell

... days from the current date and compare CreationTime against that value: $root = 'C:\root\folder' $limit = (Get-Date).AddDays(-15) Get-ChildItem $root -Recurse | ? { -not $_.PSIsContainer -and $_.CreationTime -lt $limit } | Remove-Item ...
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Android: How to Programmatically set the size of a Layout

... public int getLayoutSize() { // Get the layout id final LinearLayout root = (LinearLayout) findViewById(R.id.mainroot); final AtomicInteger layoutHeight = new AtomicInteger(); root.post(new Runnable() { public void run() { Rect rect = new Rect(); Window win = ge...
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为何谷歌不可复制? - 资讯 - 清泛网 - 专注C/C++及内核技术

...却市值突破千亿美金的大公司的本来面目。 这一切又是如何发生的呢? 后德鲁克时代的“传统”公司 《重新定义公司》这本书就试图解开上述谜团,本书的作者们包括埃里克·施密特(谷歌执行董事长)、乔纳森·罗森伯格(谷...
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grunt: command not found when running from terminal

...o bash seemed to be working. What I discovered was that some point my npm root was modified such that it was pointing to a Users/USER_NAME/.node/node_modules while the actual installation of npm was living at /usr/local/lib/node_modules. You can check this by running npm root and npm root -g (for ...
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How should you build your database from source control?

.../setup_db.sql proj/sql/dummy_data.sql proj/sql/mssql_specific.sql proj/sql/mysql_specific.sql And then I abstract out all my SQL queries so that I can build the entire project for MySQL, Oracle, MSSQL or anything else. Build and test automation uses these build-scripts as they are as important as...
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Copying files into the application folder at compile time

...n\debug\ folder on compilation, then it seems I have to put them into the root of the project. Putting them into a subfolder seems to copy them into the .\bin\debug\ folder in the same structure they're stored in. ...
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How to exit from the application and show the home screen?

...ctly from this activity. What we can do is, create an intent and go to the root activity and set flag in the intent as intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); also, add some extra like boolean to the intent intent.putExtra("EXIT", true); Then in root activity, check the value of the b...
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刘强东“一元年薪”背后的O2O棋局 - 资讯 - 清泛网 - 专注C/C++及内核技术

...电商未来的发展路线? “现在应该是对线上线下的企业如何按照新的规则围绕互联网和用户运转下去的摸索状态。”唐兴通举个例子:以前超市只是卖东西,未来它可能还用于仓储;以前电商要做物流配送,未来它可能借助超...
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Get names of all keys in the collection

...p with $addToSet to get distinct keys across the entire collection. (Use $$ROOT for referencing the top level document.) db.things.aggregate([ {"$project":{"arrayofkeyvalue":{"$objectToArray":"$$ROOT"}}}, {"$unwind":"$arrayofkeyvalue"}, {"$group":{"_id":null,"allkeys":{"$addToSet":"$arrayofkey...
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Xml serialization - Hide null values

...onvert) { XmlDocument doc = new XmlDocument(); XmlNode root = doc.CreateNode(XmlNodeType.Element, objectToConvert.GetType().Name, string.Empty); doc.AppendChild(root); XmlNode childNode; PropertyDescriptorCollection properties = TypeDescriptor.GetProperti...