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Raspberry Pi – A credit card sized computer for 25$

              Have you ever heard of a computer which is sized like a floppy disk? Of-course we already have Intel’s NUC, Sapphire’s VS8 etc. But are they really as small like a floppy disk? No, they are not.Here we have such a small computer which is  85.60mm x 56mm x 21mm in size… Read More »

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Octa-Core Processor – Real vs Illusive Octa-Core Processor – ALL YOU NEED TO KNOW

             Smartphones are one of the great gadget that is used in daily life. It almost replaces desktops and laptops for doing our day to day activities in terms of digital world. Some of the daily task which we do with smartphones are E-mail, chat, browsing, downloading applications, watching videos,… Read More »

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Oracle VirtualBox VM- Change to Full Screen Mode from Windowed Mode

           You may have faced this problem in Oracle VirtualBox where we will not be able to change the virtual machine(VM) display size to full screen mode, i.e. the virtual machine will  be in windowed mode. To fix this issue, follow the below steps. Steps: Step 1: Run the virtual machine(any Operating… Read More »

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Append/Write CRON Output to Log File in Linux (Unix)

Append CRON Output to Log :            The following syntax can be used to append the output of the shell scripts to the given file. Syntax : CRON_EXPRESSION COMMAND >> /OUTPUT_LOG_FILE_PATH/LOF_FILE 2>&1 Example :            The following example will append the output of the shell script test.sh to cron_output.log in the… Read More »

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Elasticsearch Java API – Get Alias List

The following is sample Java program to get the list of aliases in an Elasticsearch instance. Sample Program: package com.report.test; import java.util.ArrayList; import java.util.List; import org.elasticsearch.client.Client; import org.elasticsearch.client.transport.TransportClient; import org.elasticsearch.cluster.metadata.AliasMetaData; import org.elasticsearch.common.collect.ImmutableOpenMap; import org.elasticsearch.common.settings.ImmutableSettings; import org.elasticsearch.common.settings.Settings; import org.elasticsearch.common.transport.InetSocketTransportAddress; public class SampleProgram{ public static void main(String[] args) { String hostname = "localhost"; String clusterName = "elasticsearch"; Settings… Read More »

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