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One way to move files between servers is by using the scp command. Secure copy command utilizes ssh to transfer data. The simples example for copying a file from local to remote server is scp /localdir/localfile [email protected]:/remotedir/remotefile Similarily, to copy file from a remote t...

There are two ever-so-slightly different engines of regular expressions implemented in R. The default is called POSIX-consistent; all regex functions in R are also equipped with an option to turn on the latter type: perl = TRUE. Look-ahead/look-behind perl = TRUE enables look-ahead and look-behind...

Example 1, Query: SELECT char_length('ABCDE') Result: 5 Example 2, Query: SELECT character_length('ABCDE') Result: 5

Detailed instructions on getting mpandroidchart set up or installed.

You can use any IDE and OOP language to implement S.O.L.I.D Principles. In the sample code I have used C# as it is the most widely used language in .NET word and is closely resembles Java and C++.

Method nameDefinitionoperator=assigns values to the containerassignassigns values to the containerget_allocatorreturns the associated allocator------------Element accessfrontaccess the first element------------Iteratorsbefore_beginreturns an iterator to the element before beginningcbefore_beginretur...

Detailed instructions on getting wpf-controls set up or installed.

import wx class MyFileDropTarget(wx.FileDropTarget): """""" def __init__(self, window): """Constructor""" wx.FileDropTarget.__init__(self) self.window = window def OnDropFiles(self, x, y, f...

import wx class MyTextDropTarget(wx.TextDropTarget): def __init__(self, textctrl): wx.TextDropTarget.__init__(self) self.textctrl = textctrl def OnDropText(self, x, y, text): self.textctrl.WriteText("(%d, %d)\n%s\n" % (x, y, text)) ret...

import wx class MyURLDropTarget(wx.PyDropTarget): def __init__(self, window): wx.PyDropTarget.__init__(self) self.window = window self.data = wx.URLDataObject(); self.SetDataObject(self.data) def OnDragOver(self, x, y, d): return wx....

The Jedis library is generally added to Java project using a dependency management system built into the build environment of the project. Two popular Java build systems are Maven and Gradle. Using Gradle To add the Jedis library to a Gradle project, you will need configure a repository and add a...

Once you have established a connection to Redis you can get and set values using the Jedis connection object: Get String value = jedis.get(myKey); Set jedis.put(myKey, "some value");

Yarn does not by default aggregate logs before an application finishes, which can be problematic with streaming jobs that don't even terminate. A workaround is to use rsyslog, which is available on most linux machines. First, allow incoming udp requests by uncommenting the following lines in /etc/...

There are a variety of ways to validate parameter entry, in PowerShell. Instead of writing code within functions or scripts to validate parameter values, these ParameterAttributes will throw if invalid values are passed. ValidateSet Sometimes we need to restrict the possible values that a paramet...

Detailed instructions on getting jooq set up or installed.

To move between panes, follow prefix with movement keys ie, ctrlb followed by corresponding arrow keys                        ▲ ctrlb ◀        ▶                        ▼

If your Internet connection is provided via a proxy Maven will not be able to download jars from remote repositories - a common problem faced by companies. To solve this, Maven needs to be provided the details and credentials of the proxy by going to {Maven install location} → conf → settings.xml. ...

Detailed instructions on getting django-views set up or installed.

Virtual Environment tool (virtualenv) is used to isolate different projects and their dependencies by creating individual python environments for each of them. It's like installing a package locally (and not globally), similar to npm package installation option. Following is an example to install ...

Prerequisite A running MongoDB server, more details on that here. Setting Up a Java Project The MongoDB Java Driver is supplied as a JAR file and can be included in a project just like any other JAR. For example: Maven: add an entry to the <dependencies> section of your pom.xml. &lt...