gizemabali

# install ubuntu-desktop

sudo apt-get install ubuntu-desktop

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# set python3 as a default python on Ubuntu
# type 
sudo gedit .bash_aliases

# then write the following to file
alias python=python3
or
alias python='/usr/bin/python3'

# close current terminal and open new one 

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## inspect container
docker container inspect <container_name>

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// ...
// create client
ElasticsearchClient client = new ElasticsearchClient();

String startDateStr = "2018-10-01T00:00:00.000Z";
String endDateStr = "2019-03-15T00:00:00.000Z";

QueryBuilder query = QueryBuilders.matchQuery(<key>, <Id>);

SearchRequestBuilder searchBuilder = client.prepareSearch();

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// File consists of json objects
FileInputStream inputStream = null;
Scanner sc = null;
try {
     inputStream = new FileInputStream(file_path);
     sc = new Scanner(inputStream, "UTF-8");
     while (sc.hasNextLine()) {
	String line = sc.nextLine();
	JsonObject json = new JsonParser().parse(line).getAsJsonObject();
        //...

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# run script on the background
nohup script.sh &

# run script on the background and logs to a file
nohup script.sh > filename & 

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>> list indices
curl -X GET "localhost:9200/_cat/indices?v"

>> show elasticsearch health
curl -s -X GET 'http://localhost:9200/_cluster/health/'

>> delete index
curl -XDELETE http://localhost:9200/index_name/

>> ask document count

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import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;

String strDate = "2019-04-01T00:00";
// create format
SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm");
DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));

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from elasticsearch import Elasticsearch

es = Elasticsearch([{'host': "localhost", 'port': 9200}])

 query = {
    "sort": [
       {"timestamp": {"order": "asc"}},
       {"_score": {"order": "asc"}}
     ],
     "query": {"bool": {"must": [{"match": {"id": id}},

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from elasticsearch import Elasticsearch
from elasticsearch import helpers

start_time = "Some Date"
end_time = "Some Date"
parameter = ""
query = {"query": {"bool":
                 {"must": [
                         {"match": {"parameter": parameter}},
                         {"range": {"timestamp": {"gte": start_time, "lte": end_time}}}