pmarreck

#!/usr/bin/env bash

wipeusedspaceonly() {
  declare -r default_blocksize=$((2 ** 20))
  if [ $# -eq 0 ]; then
    echo "Usage: wipeusedspaceonly <device> [<blocksize in bytes, defaults to $default_blocksize>]"
    return 1
  fi
  local device="$1"
  local blocksize=${2:-$default_blocksize} # $((2 ** 20)) = 1048576 or 1MiB

pmarreck

#!/usr/bin/env nix-shell
#! nix-shell -i bash -p python311
# set this to wherever you want your virtualenv
venv="$HOME/.pythonsucks-venv"
# set up the venv
python -m venv "$venv"
# activate the venv
source "$venv/bin/activate"
# upgrade pip if necessary
python -m pip install --upgrade pip

pmarreck

# ANSI color escape-code constants
export ANSI="\033["
export TXTBLK='0;30m' # Black - Regular
export TXTRED='0;31m' # Red
export TXTGRN='0;32m' # Green
export TXTYLW='0;33m' # Yellow
export TXTBLU='0;34m' # Blue
export TXTPUR='0;35m' # Purple
export TXTCYN='0;36m' # Cyan
export TXTWHT='0;37m' # White

pmarreck

❯ lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Starship/Matisse IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:05.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge

pmarreck

echo "Creates a script file that restores your current filesystem permissions and owners in the event there's a mishap."
echo "Note: May need to be modified to handle double-quotes in filenames, excluding directories like proc or mnt, etc."
echo "Also, since 'find' does breadth-first traversal, it might make more sense to run the chmod and chown with -R,"
echo "although that will make it take MUCH longer as it will be re-applying more specific permissions"
echo "on the way down."
sudo find / -name '*' -printf 'chmod %#m "%p"\nchown -h %u:%g "%p"\n' > fix-permissions.sh
echo "Complete. Now do 'chmod +x fix-permissions.sh; chown <yourusername> fix-permissions.sh' and run when you need to."

pmarreck

# return code is either 0 (success) or 1 (fail), so you can use it straight-up in logical statements
coinflip() { return $(($RANDOM%2)); }

coinflip && echo "heads" || echo "tails"

pmarreck

# Wrote this on a whim. Consider it performance-art shell scripting.
# To really do this, set FFS=true, otherwise, only the paths to the files that would have been destroyed are printed.
# I take no responsibility for the use of this. Even writing it was scary, and I didn't test the whole thing (YET).
# You have been warned.

coinflip() { return $(($RANDOM%2)); }

thanos_logic() { while read -r line; do coinflip && echo "$line"; done; }

thanos_infinity_gauntlet_completed() {

pmarreck

# helper function
needs () {
  local bin=$1;
  shift;
  command -v $bin > /dev/null 2>&1 || {
    echo "I require $bin but it's not installed or in PATH; $*" 1>&2;
    return 1
  }
}

pmarreck

# Script: ShowListeners.ps1 
# Author: MotoX80 and Evgenij Smirnov on MS forums
# pmarreck note: If you get a security block, you may need to run the following first:
# Set-ExecutionPolicy -ExecutionPolicy Unrestricted -Scope Process
# (or use CurrentUser for the -Scope if you want it to apply outside the current session, less secure though)
# For more, see: https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.security/set-executionpolicy?view=powershell-7.2

$rpt = @()
$services = Get-CimInstance -Class Win32_Service -Filter 'State="Running"' | Select Name, ProcessID
$Listeners = Get-NetTCPConnection | Where-Object {$_.State -eq "Listen"}

pmarreck

for tab in $(grep -l -o '[a-z0-9-]*proto' $(brew --cellar)/*/*/INSTALL_RECEIPT.json)
do
    formula=$(basename $(dirname $(dirname $tab)))
    brew remove --ignore-dependencies $formula
    brew install $formula
done