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@mohanpedala
mohanpedala / bash_strict_mode.md
Last active July 17, 2025 06:10
set -e, -u, -o, -x pipefail explanation
@thebecwar
thebecwar / chudnovsky.py
Created March 18, 2018 03:56
Chudnovsky Algorithm in Python
import decimal
# for reference, the first 100 digits of pi
pi = decimal.Decimal('3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679')
# Basic recursive factorial calculation. For large n switch to iterative.
def fact(n):
if n == 0:
return 1
@jamesfreeman959
jamesfreeman959 / keepawake.ps1
Last active July 15, 2025 12:03
A very simple PowerShell script to keep a Windows PC awake and make lync think the user is active on the keyboard
# Useful references:
#
# https://superuser.com/questions/992511/emulate-a-keyboard-button-via-the-command-line
# https://ss64.com/vb/sendkeys.html
# https://social.technet.microsoft.com/Forums/windowsserver/en-US/96b339e2-e9da-4802-a66d-be619aeb21ac/execute-function-one-time-in-every-10-mins-in-windows-powershell?forum=winserverpowershell
# https://learn-powershell.net/2013/02/08/powershell-and-events-object-events/
#
# Future enhancements - use events rather than an infinite loop
$wsh = New-Object -ComObject WScript.Shell
while (1) {
@rometsch
rometsch / i3autolock.md
Last active July 2, 2025 17:03
Configure lockscreen for i3 window manager.

The i3-wm does not come with a keybinding to lock the screen or a preconfigured auto lockscreen. This gist describes how to setup both using i3lock and xautolock. i3lock is a minimalistic lockscreen and xautolock monitors mouse and keyboard activities to automatically lock the screen after a certain time of beiing inactive.

First get the tools if neccessary. E.g. sudo apt install i3lock xautolock.

To setup the keybinding Ctrl+Alt+l (last one is a lowercase L) to lock the screen append the following lines to the i3 configuration file located at ~/.config/i3/config.

# keybinding to lock screen
@max-mapper
max-mapper / bibtex.png
Last active November 6, 2024 09:03
How to make a scientific looking PDF from markdown (with bibliography)
bibtex.png
@HardenedArray
HardenedArray / Efficient Encrypted UEFI-Booting Arch Installation
Last active March 18, 2025 17:50
An effcient method to install Arch Linux with encrypted root and swap filesystems and boot from UEFI. Multi-OS, and VirtualBox, UEFI-booting are also supported.
# OBJECTIVE: Install Arch Linux with encrypted root and swap filesystems and boot from UEFI.
# Note this encrypted installation method, while perfectly correct and highly secure, CANNOT support encrypted /boot and
# also CANNOT be subsequently converted to support an encrypted /boot!!! A CLEAN INSTALL will be required!
# Therefore, if you want to have an encrypted /boot or will want an encrypted /boot system at some point in the future,
# please ONLY follow my encrypted /boot installation guide, which lives here:
from django import forms
from django.contrib.auth.models import User
class UserProfileForm(forms.ModelForm):
class Meta:
model = User
fields = ['first_name', 'last_name', 'email']
@lierdakil
lierdakil / texsvg.hs
Last active February 19, 2022 07:29
Pandoc filter to convert math to inline svg using latex and dvisvgm
{-# LANGUAGE OverloadedStrings #-}
import Text.Pandoc.JSON
import System.Directory
import System.FilePath ((</>))
import qualified Data.Hash.MD5 as MD5
import qualified Data.Text as T
import System.IO.Temp
import System.Process
import Control.Monad (unless)
@craigminihan
craigminihan / gist:b23c06afd9073ec32e0c
Last active September 21, 2023 12:47
Build GCC 4.9.2 for C/C++ on CentOS 7
sudo yum install libmpc-devel mpfr-devel gmp-devel
cd ~/Downloads
curl ftp://ftp.mirrorservice.org/sites/sourceware.org/pub/gcc/releases/gcc-4.9.2/gcc-4.9.2.tar.bz2 -O
tar xvfj gcc-4.9.2.tar.bz2
cd gcc-4.9.2
./configure --disable-multilib --enable-languages=c,c++
make -j 4
make install
@LeCoupa
LeCoupa / bash-cheatsheet.sh
Last active July 9, 2025 07:54
Bash CheatSheet for UNIX Systems --> UPDATED VERSION --> https://github.com/LeCoupa/awesome-cheatsheets
#!/bin/bash
#####################################################
# Name: Bash CheatSheet for Mac OSX
#
# A little overlook of the Bash basics
#
# Usage:
#
# Author: J. Le Coupanec
# Date: 2014/11/04