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To get general statistics about main components of Linux family of stat commands are extremely useful CPU To get processors related statistics you can use mpstat command but with some options it will provide better visibility: $ mpstat 2 10 Memory We all know command free to show amount of (r...

A DTD is referred to as an internal DTD if elements are declared within the XML files. To reference it as internal DTD, standalone attribute in XML declaration must be set to yes. An XML that describes a note that contains property to, from and message along with internal DTD will look like: <...

In external DTD elements are declared outside the XML file. They are accessed by specifying the system attributes which may be either the legal .dtd file or a valid URL. To reference it as external DTD, the standalone attribute in the XML declaration must be set as no. An XML that describes a note ...

SSL Certificates use something called public key cryptography.We need to use Https instead of Http because of keeping data secure between servers and improving customer trust. To enable this option in grails, we have to run our app differently. The command below: grails run-app -https

var alertResult = await DisplayAlert("Alert Title", Alert Message, null, "OK"); if(!alertResult) { //do your stuff. } Here we will get Ok click action.

Simple form, validation and submission functions to create a "mailing list" feature. This can then be applied to either the basic page or basic block examples. Assumes you have created a table in the drupal database called 'mailing_list' with the fields first name, last name and email ad...

Simple form, validation and submission functions to create a "mailing list" feature. This can then be applied to either the basic page or basic block examples. Assumes you have created a table in the drupal database called 'mailing_list' with the fields first name, last name and email ad...

just use your cmd: You can use the ng generate (or just ng g) command to generate Angular components: Component: ng g component my-new-component Directive: ng g directive my-new-directive Pipe: ng g pipe my-new-pipe Service: ng g service my-new-service Class: ng g class my-new-classt...

@sorted = sort { $a <=> $b } @list; Comparing $a and $b with the <=> operator ensures they are compared numerically and not textually as per default.

@sorted = sort { $b <=> $a } @list; @sorted = reverse sort { $a <=> $b } @list; Sorting items in descending order can simply be achieved by swapping $a and $b in the comparator block. However, some people prefer the clarity of a separate reverse even though it is slightly slower.

react-native bundle --platform android --dev false --entry-file index.android.js \ --bundle-output android/app/src/main/assets/index.android.bundle \ --assets-dest android/app/src/main/res/

cd android && ./gradlew assembleRelease

Upload the APK to your phone. The -r flag will replace the existing app (if it exists) adb install -r ./app/build/outputs/apk/app-release-unsigned.apk The shareable signed APK is located at: ./app/build/outputs/apk/app-release.apk

A Table can be written to a TableSink, which is a generic interface to support different formats and file systems. A batch Table can only be written to a BatchTableSink, while a streaming table requires a StreamTableSink. Currently, flink offers only the CsvTableSink interface. Usage In the examp...

Once the sports2000 database has been installed it's time to run it as a standalone server (and not connect to it as a file). Start proenv (proenv in the startmeny on Windows or /usr/install-directory/bin/proenv on Linux/Unix). This example is from Windows. Linux is the same but you need to change...

Pre-requisites: Java 7 Hadoop (Refer here for Hadoop Installation) Mysql Server and Client Installation: Step 1: Download the latest Hive tarball from the downloads page. Step 2: Extract the downloaded tarball (Assumption: The tarball is downloaded in $HOME) tar -xvf /home/username/apache...

Java technology is both a programming language and a platform. The Java programming language is a high-level object-oriented language that has a particular syntax and style. A Java platform is a particular environment in which Java programming language applications run. There are several Java platf...

The 0.9 release of Kafka introduced a complete redesign of the kafka consumer. If you are interested in the old SimpleConsumer (0.8.X), have a look at this page. If your Kafka installation is newer than 0.8.X, the following codes should work out of the box. Configuration and initialization Kaf...

In your redux store you hold the raw data. Some times the raw data is all you need, but other times you need to derive new data from the raw data, often by combining parts of the raw data. A common use case for deriving data is filtering a list of data based on a criteria, where both the list and t...

The user can call Incrementor.Increment K number of times by pressing a key within '0' .. '9' and it's possible to call Incrementor.Increment faster than the task Incrementor can increment I. with Ada.Text_IO; with Ada.Integer_Text_IO; procedure Main is use Ada.Text_IO; task Incrementor...