Skip to content

Instantly share code, notes, and snippets.

@eltonvs
eltonvs / arch_installation.md
Last active January 12, 2025 11:21
Arch Linux step to step installation guide

Arch Linux Installation Guide

This guide will show step-by-step how to Install Arch Linux on UEFI mode.

Table of Contents

  • Bootable Flash Drive
  • BIOS
  • Pre installation
    • Set Keyboard Layout
    • Check boot mode
  • Update System Clock
@heppu
heppu / ARCH_INSTALL.MD
Last active May 1, 2025 18:13
Installing Arch with GPT, dm-crypt, LUKS, LVM and systemd-boot

Create bootable USB

dd bs=4M if=/path/to/archlinux.iso of=/dev/sdx status=progress oflag=sync

Boot from USB and set prepare system

loadkeys <your-keymap>
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active June 28, 2025 05:00
Useful PostgreSQL Queries and Commands
-- 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%'