spajak

Improve/Repair Scanned Images Using ImageMagick

This is the command:

magick "img-01.tiff" -strip -kuwahara "1.5" -modulate "100,90" -level "6,92%,0.75" -quality 80 "img-01.jpg"

• -strip - remove any metadata
• -kuwahara "1.5" - apply smoothing algorithm

spajak

Creating additional virtual hard disk (VHDX) for WSL2 with ext4 filesystem

Lines starting with # mean the commands have to be executed by root user under Linux shell (WSL distro). All other commands have to be executed under Windows-PowerShell as Administrator.

Make VHDX disk file and mount it under Windows

New-VHD support.vhdx -SizeBytes 25GB -Dynamic -BlockSizeBytes 1MB
Write-Output "\\.\PhysicalDrive$((Mount-VHD -Path support.vhdx -PassThru | Get-Disk).Number)"

spajak

import sys
from pathlib import Path
from zipfile import ZipFile, ZIP_DEFLATED, ZIP_STORED

def main():
    usage = f'{sys.argv[0]} source_dir [destination_file]'
    if len(sys.argv) > 1:
        src = Path(sys.argv[1])
        dst = Path(sys.argv[2]) if len(sys.argv) > 2 else Path(src.name + ".epub")
        validate(src, dst)

spajak

<?php

/*
 * Simple directory listing for a web server (lighttpd).
 *
 * Author: Sebastian Pająk
 * Version: 0.0.1
 * License: MIT
 *
 * Setup:

spajak

Make epub archive using 7zip command line utility in PowerShell.

$source = ".\ebook"
$epub = ".\ebook.epub"

$source = (Resolve-Path $source -ErrorAction Stop).Path
Move-Item "${source}\mimetype" ".mimetype" -ErrorAction Stop
Remove-Item "$epub" -ErrorAction Ignore
& 7za a -mx0 "$epub" ".mimetype"

spajak

import sys
from pathlib import Path
import importlib
import runpy

def require(file, name=None):
    if name is None:
        name = Path(file).stem
    anonymous = lambda cls: cls(name, str(Path(__file__).parent / file))
    @anonymous

spajak

#!/bin/bash

cpu=$(</sys/class/thermal/thermal_zone0/temp)
cpu=$(printf %.1f "${cpu}e-3")

gpu=$(vcgencmd measure_temp)
gpu=${gpu:5:-2}

echo "CPU: ${cpu} °C"
echo "GPU: ${gpu} °C"

spajak

# Disable random IPv6 addresses (but keep temporary addresses),
# and use SLAAC address as a preferred IPv6 address in Windows 10
# ------------------------------------------------------------------------------

# UseTemporaryAddresses
#
# Always.   The computer always generates temporary addresses by using random numbers.
# Counter.  The computer generates temporary addresses by using the interface identifier.
#           You typically use this identifier for test purposes.
# Disabled. The computer does not use temporary addresses.

spajak

param(
    [String] $png
)

$root = Split-Path "$png" -Parent
$name = Split-Path "$png" -LeafBase
$icon = Join-Path $root ($name + ".ico")

& magick "$png" -strip -background none `
    -gravity center -extent "%[fx:max(w,h)]x%[fx:max(w,h)]" `

spajak

[CmdletBinding(DefaultParameterSetName = "Default")]
param(
    [Parameter(Position=0, Mandatory=$true, ValueFromPipeline=$true)]
    [Alias("i", "Path", "Source")]
    [String] $SourceDirectory,

    [Parameter(Mandatory=$true, ParameterSetName="DestinationAlongSource")]
    [Alias("ds", "os")]
    [Switch] $DestinationAlongSource,