Powershell

A collection of some powershell-snippets I found useful, can be found under:

https://github.com/hmaier-dev/powershell-library/tree/main/src

Constructing an alias with arguments#

You can use the builtin-args variable for that.

function DotFilesRepo(){
	$base = "git.exe --git-dir=$env:USERPROFILE\repos\dotfiles\ --work-tree=$env:USERPROFILE"
	$cmd = "$base $args" # The $args-variable is builtin and gets all arguments. Discoverd by accident.
	Invoke-Expression -Command $cmd
}

function DotFilesReposStatus(){
    dfr status
}

Set-Alias -Name dfr -Value DotFilesRepo
Set-Alias -Name dfrs -Value DotFilesReposStatus

Aliases#

When constructing an alias with the corresponding function, keep in mind that powershell is not case-sensitive. That means, Set-Alias -Name wiki -Value Wiki would set alias that overwrites the function. My approach to this is to add the appropriate verb to the function name, e.g. Set-Alias -Name wiki -Value EnterWiki.

Params#

If you want to use flags to activate a function, you can use a [switch].


param(
    [switch]$SetTaskScheduler = $False,
)

Write-Host $SetTaskScheduler
if ($SetTaskScheduler){
    Write-Host "Setting the task"
}

Task Scheduler#

nice article: https://www.sharepointdiary.com/2022/06/create-scheduled-task-in-powershell.html

Credentials Object#

If you want to safely pass username and password, you can create a Credentials object

$username = "admin1234"
$password = "mysupersecurepassword"

[securestring]$secStringPassword = ConvertTo-SecureString $password -AsPlainText -Force
[pscredential]$cred = New-Object System.Management.Automation.PSCredential ($username, $secStringPassword)