andykuszyk

See devices on local network

arp-scan --localnet

Check disk usage

du -h

Finding text in files

cat /path/to/file.txt | grep -o -P '.{0,3}string-to-match.{0,10}'

See first few lines in file

git credential-manager clear

Using AutoMapper to map complex classes with members that are hidden behind an interface

Background

I recently wanted to use AutoMapper (a .NET library for mapping objects of one type to another) to map class containing many properties that were of a type that also needed to be mapped to another, similar type. To make matters worse, the type that I wanted to map to didn't just have properties of a custom type, but these types were actually interfaces with custom implementations.

For example, the type I wanted to map from looked something like this:

public class OriginalParent
{
  public OriginalChild ChildProperty { get; }

	import requests
	requests.post('http://{}/job/{}/buildWithParameters?{}={}'.format(
	jenkins_url,
	job_name,
	parameter_name,
	parameter_value
	))

	$serverAddress = "1.1.1.1"
	$userName = "user"
	$securePassword = ConvertTo-SecureString -AsPlainText -Force -String "password"
	$credentials = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $userName,$securePassword
	$session = New-PSSession -ComputerName $serverAddress -Credential $credentials

	Invoke-Command -Session $session -ScriptBlock {
	Write-Host "hello world"
	}

 Param([string]$fileName, [string]$find, [string]$replace)
 (Get-Content $fileName -encoding UTF8) | foreach-object {
     $_ -replace $find, $replace
 } | Set-Content $fileName -encoding UTF8

	winrm quickconfig
	winrm s winrm/config/client '@{TrustedHosts="myservername.domain"}'

	# To list the trusted hosts:
	Get-Item WSMan:\localhost\Client\TrustedHosts

	$dbName = "MyDatabase"
	$serverAddress = ".\SqlServer"

	# Delete the existing database.
	$server = new-Object Microsoft.SqlServer.Management.Smo.Server($serverAddress)
	if($server.Databases[$dbName)
	{
	$server.KillDatabase($dbName)
	}

	use [dbname]
	go
	grant execute to [user]