realyukii

The idea came from Nir Lichtman video with the title: 'Making Simple Linux Distro from Scratch'

this gist just re-document it in the form of text

Requirement

• compiled linux kernel
• compiled static-linked busybox
• installed qemu

Creating initramfs

realyukii

#include <stdio.h>

/*
 * A program to demonstrate inclusion principle in set theory.
 * note: to change the parameter, you need to manually adjust the condition.
 *
 * */
int main(void)
{
	int start = 1;

realyukii

start the program in background

setsid ngrok tcp <port> &>/dev/null </dev/null

optional, if you want store the log, enable ngrok option --log=stdout

parse the json string with node

node -pe 'JSON.parse(process.argv[1])' $(curl -s http://localhost:4040/api/tunnels)
# atau

realyukii

The list will be updated over time.

LSP

1. view LSP status -> LspInfo (by nvim-lspconfig), checkhealth lsp
2. used by -> lua vim.lsp.buf.references()

Preference

1. revert color scheme -> colorscheme vim
2. list available colorscheme -> echo globpath(&runtimepath, 'colors/*.vim')

realyukii

#!/usr/bin/sh

cal | python3 -c "
import sys
lines = sys.stdin.read().splitlines()

# Replace weekday abbreviations with full names, ensuring consistent spacing
header = lines[1]
header = header.replace('Su', 'Sunday   ').replace('Mo', 'Monday   ').replace('Tu', 'Tuesday  ').replace('We', 'Wednesday').replace('Th', 'Thursday ').replace('Fr', 'Friday   ').replace('Sa', 'Saturday ')

realyukii

#!/usr/bin/bash

pacman -Qei | grep --color=never -E '^(Name|Install Date)' | awk -F': ' '/^Name/ {name=$2} /^Install Date/ {print $2, name}' | awk '
BEGIN {
    # Define month names for conversion
    split("Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec", months, " ")
}
{
    # Extract the date and time parts
    if ($1 ~ /^Mon|Tue|Wed|Thu|Fri|Sat|Sun/) {

realyukii

#!/usr/bin/bash

if [ $# -eq 0 ]; then
    echo "Usage: match_md5.sh <video_path>"
    exit 1
fi

find "$1" -type f -exec sh -c '
  # another alternative for $HOME: readlink
  MPV_STATE_PATH="$HOME/.local/state/mpv/watch_later"

realyukii

When working on automation workflow, it's often easier to work with CSV format because it's easy to use and easy to parse.

you can export xlsx file to csv too and play around with it.

for example you have line-separated data like

username;password;email
reakl yuki;qwerty;yuki@mail.com

realyukii

#!/bin/bash

# note
# you can use grep to count occurrences of each character in a string
# check total of non-exists and exists user with: grep -c '0' output_file.txt

email_file="emails.txt"  # File containing emails, assuming delimeted by CRLF
database="evaluasi"

# Loop through each email in the file

realyukii

#!/bin/bash

# Script to search for meta-packages in the local system

# Function to search for meta-packages
search_meta_packages() {
    echo "Searching for meta-packages..."
    for pkg in $(pacman -Qq); do
        # Check if the package has dependencies but no installed files
        files=$(pacman -Ql $pkg) # List package files