FlakM

#!/usr/bin/env python3
# Usage: pager_duty.py <MM.YYYY> <User Name>
# Example: ./pager_duty.py 12.2023 "Maciej Flak"

import http.client
import json
import sys
import os
from datetime import datetime, timedelta

FlakM

#![no_std]
#![no_main]
use aya_bpf::helpers::bpf_get_current_pid_tgid;
use aya_bpf::helpers::gen::bpf_ktime_get_ns;
use aya_bpf::helpers::bpf_probe_read_user_str_bytes;
use aya_bpf::helpers::bpf_probe_read_kernel_str_bytes;
use aya_bpf::BpfContext;
use aya_bpf::{
    macros::map,
    macros::{uprobe, uretprobe},

FlakM

//! ```cargo
//! [dependencies]
//! 
//! axum = "0.6.20"
//! lazy_static = "1.4.0"
//! serde = "1.0.183"
//! serde_json = "1.0.104"
//! tokio = { version = "1.30.0", features = ["full"] }
//! ```
use axum::response::IntoResponse;

FlakM

Setting up qemu VM using nix flakes

Did you know that it is rather easy to setup a VM to test your NixOs configuration?

Create simple flake:

# flake.nix
{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

FlakM

/**
  * Copy given string into clipboard. 
  *
  * @param s string that should be copied into clipboard
  */
def yank(s: String) = {
  val stringSelection = new java.awt.datatransfer.StringSelection(s)
  val clipboard = java.awt.Toolkit.getDefaultToolkit().getSystemClipboard()
  clipboard.setContents(stringSelection, null)
}

FlakM

1. Is the problem well defined
   1. why is the problem occurring
   2. what is the outcome of the problem
   3. why hasn't it come up earlier
   4. what are possible solutions
2. can you reproduce it in automated manner
   1. write automated test reproducing error
   2. if a problem is rather statistical, can you measure changes in a very fast and repeatable way
   3. describe manual tests if they were performed
3. can you check if the change doesn't break anything else

FlakM

Surnames

Taken from https://en.wiktionary.org/wiki/Appendix:Polish_surnames

• http://web.archive.org/web/20160823042258/http://www.futrega.org/etc/nazwiska.html 20k most popular
• http://web.archive.org/web/20160823042258/http://www.futrega.org/etc/nazwiska.zip 400k names

FlakM

/*  
This will result in error:
  SQL Error [XX000]: ERROR: unable to encode table key: *tree.DJSON

on insert
*/  
CREATE TABLE json_events2 (
  uuid            STRING PRIMARY KEY,
  value           JSONB,
  event_type      STRING,

FlakM

java

https://linuxconfig.org/how-to-install-java-on-ubuntu-18-04-bionic-beaver-linux

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
apt search oracle-java
sudo apt install oracle-java8-set-default
java --version

FlakM

#!/bin/bash
DIR=~/tata
FILES=$DIR/*.JPG

mkdir -p workdir
cp $FILES workdir -a

for f in $DIR/workdir/*.JPG
do
  echo "Processing $f file..."