alexedwards

package main

import (
	"crypto/rand"
	"crypto/subtle"
	"encoding/base64"
	"errors"
	"fmt"
	"log"
	"strings"

jun06t

package main

import (
	"encoding/json"
	"fmt"
	"net/http"
	"time"

	"github.com/hashicorp/vault/api"
	"github.com/hashicorp/vault/builtin/credential/aws"

mjuric

Utilities you'll care about

All these are already installed on epyc.

• kafkacat (conda install -c conda-forge kafkacat)

• kt (grab it from https://github.com/fgeller/kt/releases)

• kafka-* (come with kafka, if you yum install if from Confluent's repo, or via Docker if you're so inclined). Warning -- JVM based and dreadfully slow.

• jq (conda install -c conda-forge jq or use your favorite package manager)

ipbastola

JQ to filter JSON by value

Syntax: cat <filename> | jq -c '.[] | select( .<key> | contains("<value>"))'

Example: To get json record having _id equal 611

cat my.json | jq -c '.[] | select( ._id | contains(611))'

Remember: if JSON value has no double quotes (eg. for numeric) to do not supply in filter i.e. in contains(611)

dotzero

Установка дистрибутива на SD

Raspberry PI SD Installer OS X — простой консольный скрипт для записи любых .img или .iso образов на SD флешки. Использование на OSX или Linux:

sudo ./install ~/Downloads/raspbian.img

Нахождение Raspberry Pi в сети

Подключили ethernet кабель, вставили флешку с Raspbian и запустили, но нет лишнего HDMI монитора и клавиатуры? Выход есть и это — Adafruit Raspberry Pi Finder. Использование на OSX или Linux:

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'