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01 October 2015

Powershell data types

Variable type
Description
Example
[array]
An array

[bool]
Yes-no value
[boolean]$flag = $true
[byte]
Unsigned 8-bit integer, 0...255
[byte]$value = 12
[char]
Individual unicode character
[char]$a = "t"
[datetime]
Date and time indications
[datetime]$date = "12.Nov 2004 12:30"
[decimal]
Decimal number
[decimal]$a = 12
$a = 12d
[double]
Double-precision floating point decimal
$amount = 12.45
[guid]
Globally unambiguous 32-byte identification number
[guid]$id = [System.Guid]::NewGuid()
$id.toString()
[hashtable]
Hash table

[int16]
16-bit integer with characters
[int16]$value = 1000
[int32], [int]
32-bit integers with characters
[int32]$value = 5000
[int64], [long]
64-bit integers with characters
[int64]$value = 4GB
[nullable]
Widens another data type to include the ability to contain null values. It can be used, among others, to implement optional parameters
[Nullable``1[[System.DateTime]]]$test = Get-Date
$test = $null
[psobject]
PowerShell object

[regex]
Regular expression
$text = "Hello World"
[regex]::split($text, "lo")
[sbyte]
8-bit integers with characters
[sbyte]$value = -12
[scriptblock]
PowerShell scriptblock

[single], [float]
Single-precision floating point number
[single]$amount = 44.67
[string]
String
[string]$text = "Hello"
[switch]
PowerShell switch parameter

[timespan]
Time interval
[timespan]$t = New-TimeSpan $(Get-Date) "1.Sep 07"
[type]
Type

[uint16]
Unsigned 16-bit integer
[uint16]$value = 1000
[uint32]
Unsigned 32-bit integer
[uint32]$value = 5000
[uint64]
Unsigned 64-bit integer
[uint64]$value = 4GB
[xml]
XML document