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HANDY ONE-LINE SCRIPTS FOR AWK                               30 April 2008
Compiled by Eric Pement - eric [at] pement.org               version 0.27

Latest version of this file (in English) is usually at:
   http://www.pement.org/awk/awk1line.txt

This file will also be available in other languages:
   Chinese  - http://ximix.org/translation/awk1line_zh-CN.txt   

USAGE:

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Console:

SELECT * FROM "cb-events"."eventType-index"
	WHERE "eventType" = 'phone-updated'
    AND eventDate >= '2021-10-01'
    AND eventDate <= '2021-10-02'

CLI:

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https://aws.amazon.com/blogs/database/five-workload-characteristics-to-consider-when-right-sizing-amazon-elasticache-redis-clusters/

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List permissions for service account <namespace>:<serviceaccount> in namespace <namespace>

kubectl auth can-i --list --as=system:serviceaccount:<namespace>:<serviceaccount> -n <namespace>

https://stackoverflow.com/questions/54889458/kubernetes-check-serviceaccount-permissions

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nginx -v
nginx version: nginx/1.20.0

more /etc/nginx/nginx.conf
# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

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db.person.getIndexes()

db.person.createIndex( { "personId": 1 }, { unique: true } )

	Index already exists with different options

db.person.dropIndex("personId_1")

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fields @timestamp, @message
| filter (@message like /records=/)
| parse @message /records=(?<records>\S+)/
| filter records >= 200
| sort @timestamp desc
| limit 2000

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#!/usr/bin/env python3
#
# https://realpython.com/primer-on-python-decorators/

import functools
import math

# a decorator:
# - takes a function f1 as argument
# - returns a new function f2

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You can run the operation in the web shell below:
https://docs.mongodb.com/manual/tutorial/query-arrays/

# to find(query) with two conditions on the same field, use $and:

db.inventory.find(
	{$and:
		[
		{tags: {$size:3}},

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package main

import (
	"fmt"
	"io"
	"net"
)

func main() {
	ln, err := net.Listen("tcp", ":8080")