Screen Quick Reference

Basic

Description	Command
Start a new session with session name	`screen -S <session_name>`
List running sessions / screens	`screen -ls`
Attach to a running session	`screen -x`
Attach to a running session with name	`screen -r`

tekgnosis-net / x-article-to-md.user.js

Created March 3, 2026 12:10 — forked from geekjourneyx/x-article-to-md.user.js

X Article to Markdown

	// ==UserScript==
	// @name X Article to Markdown
	// @namespace http://tampermonkey.net/
	// @version 1.0.0
	// @description Copy X (Twitter) long articles as Markdown format
	// @author geekjourney
	// @match https://x.com//status/
	// @match https://x.com//article/
	// @icon https://x.com/favicon.ico
	// @grant none

tekgnosis-net / limit_gpu_power.md

Created November 4, 2025 03:12 — forked from jctosta/limit_gpu_power.md

Nvidia GPU Power Limits for Linux System

You can use the following commands to limit the maximum power allowed to your NVIDIA GPU when using linux systems.

First, let's check how much power the GPU is allowed to draw and the current value:

nvidia-smi -q -d POWER

This should return an output similar to this one:

tekgnosis-net / postfix-debconf-get-selections.txt

Created August 27, 2025 13:55 — forked from gene1wood/postfix-debconf-get-selections.txt

postfix debconf-get-selections using myhost.example.com as an example domain name

	# Internet protocols to use:
	# Choices: all, ipv6, ipv4
	postfix postfix/protocols select all
	# System mail name:
	postfix postfix/mailname string myhost.example.com
	# Add a 'mydomain' entry in main.cf for upgrade?
	postfix postfix/mydomain_warning boolean
	# Correct tlsmgr entry in master.cf for upgrade?
	postfix postfix/tlsmgr_upgrade_warning boolean
	# Root and postmaster mail recipient:

tekgnosis-net / proxmox_raid1_recovery.sh

Created October 2, 2024 04:08 — forked from MakiseKurisu/proxmox_raid1_recovery.sh

Recover Proxmox VE RAID-1 configuration when one disk is replaced / readded

	# TODO: Add ESP disk replacement

	# Assuming the disk in problem is /dev/sdb, and we are running off /dev/sda in degraded mode.

	# However, if both /dev/sda and /dev/sdb have been booted in degraded mode,
	# then the next time when you boot with both disk present, initramfs will not be able to mount root in rw mode.
	# In that case, you may have PERMANENT DATA LOSS if you are not careful, and MAKE BACKUPS of your current disks before any recovery.
	# I HAVE NOT tried to recovery from such situation, as my plan is always recovery from existing backups.
	# However, I'm more likely to recreate the system from scratch, as my data are stored in RAID and with multiple backups,
	# so I only need to recreate my VM environment according to the script I'm writting on Gist. I love fresh system anyway.

tekgnosis-net / proxmox_btrfs_raid1.sh

Created October 2, 2024 04:07 — forked from MakiseKurisu/proxmox_btrfs_raid1.sh

Convert Proxmox VE over Btrfs to RAID-1 configuration

	# Please follow https://gist.github.com/MakiseKurisu/3a44918bccf3383c0b5ccf362f429c8b first to set up rootfs
	# Assuming rootfs on /dev/sdb2, and adding /dev/sda to the RAID-1 configuration

	# Remove existing Proxmox installation and LVM Thin storage
	pvesm remove local-lvm
	vgremove pve -y

	# Set up partition table
	(echo g; echo n; echo ''; echo ''; echo '+512M'; echo t; echo 1; echo n; echo ''; echo ''; echo ''; echo w) \| fdisk /dev/sda

tekgnosis-net / proxmox_custom_partition_layout.sh

Created October 2, 2024 04:07 — forked from MakiseKurisu/proxmox_custom_partition_layout.sh

Migrate Proxmox VE to a custom partition layout feat. Btrfs

	# The following script was tested for fresh install only, without any VM
	# Assuming Proxmox is installed in /dev/sda with LVM-ext4 partition and UEFI boot, and the target disk is /dev/sdb

	# Prepare
	sed -i "s/deb/#deb/" /etc/apt/sources.list.d/pve-enterprise.list
	apt update
	apt full-upgrade -y

	# WARNING! Check your target disk device name!
	lsblk

tekgnosis-net / iommu.sh

Created September 29, 2024 07:58 — forked from n1snt/iommu.sh

A simple bash script to get the list of iommu groups & the devices in those iommu groups.

	#!/bin/bash
	for d in /sys/kernel/iommu_groups//devices/; do
	n=${d#/iommu_groups/}; n=${n%%/*}
	printf 'IOMMU Group %s ' "$n"
	lspci -nns "${d##*/}"
	done

tekgnosis-net / nginx-wordpress.conf

Created September 26, 2024 05:04 — forked from nfsarmento/nginx-wordpress.conf

Harden wordpress security nginx

	############ WordPress ####################

	# Disable logging for favicon and robots.txt
	location = /favicon.ico {
	try_files /favicon.ico @empty;
	access_log off;
	log_not_found off;
	expires max;
	}

tekgnosis-net / lockable_script_boilerplate.sh

Created September 24, 2024 09:12 — forked from przemoc/lockable_script_boilerplate.sh

Lockable script

	#!/bin/bash
	# SPDX-License-Identifier: MIT

	## Copyright (C) 2009 Przemyslaw Pawelczyk <przemoc@gmail.com>
	##
	## This script is licensed under the terms of the MIT license.
	## https://opensource.org/licenses/MIT
	#
	# Lockable script boilerplate