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grepping using the “|” alternative operator

...erator. For example, the command I executed on my local machine was: get http://localhost/foobar-& | grep "fizz\|buzz" This command resulted in the following error: -bash: syntax error near unexpected token `|' This error was corrected by changing my command to: get "http://localhost/foo...
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Symfony 2: How do I check if a user is not logged in inside a template?

... future. - everytime I google this, I end up here! Symfony Doc Sources: http://symfony.com/doc/current/book/security.html http://symfony.com/doc/current/cookbook/security/remember_me.html Check if any user logged in (regardless of role) As answered, you can use app.user to check if any user ...
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Delete an element from a dictionary

...ay misunderstand that dict(d) can give them a copy with 'd'. But it's an incomplete copy. When only doing del keys operations, that's OK. But when you want to do something else to a nested dict, modifying 'r' using that copy method may cause change to the original 'd'. To get an authentic copy, you ...
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How can I check if a scrollbar is visible?

... edited Jun 20 at 9:12 Community♦ 111 silver badge answered Jan 27 '11 at 9:19 ReigelReigel ...
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How to loop through a HashMap in JSP?

... getValue() methods. Here's a basic example: <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <c:forEach items="${map}" var="entry"> Key = ${entry.key}, value = ${entry.value}<br> </c:forEach> Thus your particular issue can be solved as follows: <%@ t...
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Are strongly-typed functions as parameters possible in TypeScript?

In TypeScript, I can declare a parameter of a function as a type Function. Is there a "type-safe" way of doing this that I am missing? For example, consider this: ...
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How can I get a list of users from active directory?

...tinguished name is like this CN=SomeName,CN=SomeDirectory,DC=yourdomain,DC=com. Like a traditional relational database, you can run query against a LDAP server. It's called LDAP query. There are a number of ways to run a LDAP query in .NET. You can use DirectorySearcher from System.DirectoryServ...
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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)

I'm reading some automated weather data from the web. The observations occur every 5 minutes and are compiled into monthly files for each weather station. Once I'm done parsing a file, the DataFrame looks something like this: ...
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How to upload, display and save images using node.js and express [closed]

...relative to where your script is located, you can serve it this way: const http = require("http"); const path = require("path"); const fs = require("fs"); const express = require("express"); const app = express(); const httpServer = http.createServer(app); const PORT = process.env.PORT || 3000; ...
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C# Interfaces. Implicit implementation versus Explicit implementation

...s an example where casting's not needed: internal struct SomeValueType : IComparable { private Int32 m_x; public SomeValueType(Int32 x) { m_x = x; } public Int32 CompareTo(SomeValueType other) {...);} Int32 IComparable.CompareTo(Object other) { return CompareTo((SomeValueType) othe...