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@ssokolow
ssokolow / pagination_example.sql
Created December 23, 2009 13:02
Reasonably efficient pagination without OFFSET (SQLite version)
-- Reasonably efficient pagination without OFFSET
-- SQLite version (Adapted from MS SQL syntax)
-- Source: http://www.phpbuilder.com/board/showpost.php?p=10376515&postcount=6
SELECT foo, bar, baz, quux FROM table
WHERE oid NOT IN ( SELECT oid FROM table
ORDER BY title ASC LIMIT 50 )
ORDER BY title ASC LIMIT 10
@kostaz
kostaz / Compile_Bitcoin_on_Ubuntu_14_04
Last active September 3, 2023 10:31
Compile Bitcoin on Ubuntu 14.04
Assuming the username of the Ubuntu user is "theusername".
Preparation
-----------
```
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential libtool autotools-dev autoconf pkg-config libssl-dev
@steinwaywhw
steinwaywhw / One Liner to Download the Latest Release from Github Repo.md
Last active July 19, 2024 22:35
One Liner to Download the Latest Release from Github Repo
  • Use curl to get the JSON response for the latest release
  • Use grep to find the line containing file URL
  • Use cut and tr to extract the URL
  • Use wget to download it
curl -s https://api.github.com/repos/jgm/pandoc/releases/latest \
| grep "browser_download_url.*deb" \
| cut -d : -f 2,3 \
| tr -d \" \
@pgolding
pgolding / scan.py
Created June 5, 2017 19:40
scan all elements from a dynamodb table using Python (boto3)
from __future__ import print_function # Python 2/3 compatibility
import boto3
import json
import decimal
from boto3.dynamodb.conditions import Key, Attr
# Helper class to convert a DynamoDB item to JSON.
class DecimalEncoder(json.JSONEncoder):
def default(self, o):
if isinstance(o, decimal.Decimal):
@alexcasalboni
alexcasalboni / aws-lambda-static-type-checker.md
Last active May 22, 2023 07:31
AWS Lambda Static Type Checker Example (Python3)

How to use Python3 Type Hints in AWS Lambda

TL;DR

Static Type Checkers help you find simple (but subtle) bugs in your Python code. Check out lambda_types.py and incrementally improve your code base and development/debugging experience with type hints.

Your Lambda Function code will go from this:

@darconeous
darconeous / tesla-key-card-protocol.md
Last active July 9, 2024 13:44
Tesla Key Card Protocol

Tesla Key Card Protocol

Researched by Robert Quattlebaum darco@deepdarc.com.

Last updated 2020-02-03.

Image of Tesla Key Card Image of Tesla Model 3 Key Fob

@OR13
OR13 / interop-links.md
Last active May 7, 2020 02:26
Interop Links
@freenancial
freenancial / xpub_zpub_convert.py
Created August 5, 2020 06:31
Convert xpub/xprv to zpub/zprv
import base58
x = 'xprv9s21ZrQH143K2f55zo5GiXiX16MiPzBgc2bEXNd77e1ooGsjxAyXjozyuniqiSB76VESjTW8s7vdsK3NFboha6tZgF9BzcDdNtUT6Aw99P2'
zp = b'\x04\xb2\x43\x0c'
base58.b58encode_check(zp + base58.b58decode_check(x)[4:]).decode('ascii')
# output: 'zprvAWgYBBk7JR8GjFTKfWeX8huXM2ecHEAgSFdg6AQssemZuUWCTVJeywKFxCe1iFUwumU4EQhFnSdjdtGVgzdjAaFmQvY3ARrbvLbjsLf6oNE'
# xprv = b'\x04\x88\xad\xe4'
# yprv = b'\x04\x9d\x78\x78'
# zprv = b'\x04\xb2\x43\x0c'
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#!/bin/bash
#alias lightning-cli="docker exec -it cln lightning-cli"
#docker exec -it cln lightning-cli getinfo
#working_path=/home/bitcoin/script-earning
BASEDIR=$(dirname $0)
working_path=${BASEDIR}
_now=$(date +"%d:%m:%Y")
JSON=`docker exec cln lightning-cli clboss-status | jq .offchain_earnings_tracker`
echo $JSON | jq -r 'map({in_earnings, in_expenditures}) | (first | keys_unsorted) as $keys | map([to_entries[] | .value]) as $rows | $keys,$rows[] | @csv' > $working_path/status.csv
awk -F"," '{x+=$1}END{print "Total earning: " x/1000}' $working_path/status.csv