Powershell

Front 1

What's the command to load an assembly in PowerShell if it is located in the GAC.

Back 1

[System.Reflection.Assembly]::LoadWithPartialName("assemblyname-goes-here")

Front 2

What's the command to load an assembly in PowerShell at an arbitrary location?

Back 2

[System.Reflection.Assembly]::LoadFile("full-file-path-goes-here")

Front 3

How do you express bool values in PowerShell

Back 3

$true and $false

Front 4

How do you express null in PowerShell

Back 4

$null

Front 5

How do you declare parameters for a .ps1 script

Back 5

Put the following as the first line of the file:

param($param1, $param2)

param([string] $rootpath, [string] $playlistpath)

Front 6

How do you access an envionment variable in PowerShell?

Back 6

$env:enivornment-variable-name-goes-here

Front 7

How do you make a script parameter a required parameter?

Back 7

Assign the default value of the parameter to $(throw "message to display")

e.g. param([string] $playlistpath=$(throw "Specify the path of a .asx playlist"))

Front 8

What's the escape character within a string?

Back 8

The back tick: `

Front 9

How do you expand a variable within a string?

Back 9

Within double quoted string, they're already expanded.

Within single quoted string, wrap it's usage in $()
Example: 'The value of the variable is $($somevariable)'

Front 10

How do you perform string formatting?

Back 10

With the -f switch.
Example "The value of some variable is {0}" -f $somevariable