New-Guid

Reference

Module:: Microsoft.PowerShell.Utility

Creates a GUID.

Syntax

New-Guid []

New-Guid
   [-Empty]
   [<CommonParameters>]

New-Guid
   [-InputObject <String>]
   [<CommonParameters>]

Description

The New-Guid cmdlet creates a random globally unique identifier (GUID). If you need a unique ID in a script, you can create a GUID, as needed.

Examples

Example 1: Create a new GUID

New-Guid

This command creates a random GUID. Alternatively, you could store the output of this cmdlet in a variable to use elsewhere in a script.

Example 2: Create an empty GUID

New-Guid -Empty

Guid
----
00000000-0000-0000-0000-000000000000

Example 3: Create a GUID from a string

This example converts a string that contains a GUID to a GUID object.

New-Guid -InputObject "d61bbeca-0186-48fa-90e1-ff7aa5d33e2d"

Guid
----
d61bbeca-0186-48fa-90e1-ff7aa5d33e2d

Example 4: Convert strings from the pipeline to GUIDs

This examples converts strings from the pipeline to GUID objects.

$guidStrings = (
'11c43ee8-b9d3-4e51-b73f-bd9dda66e29c',
'0f8fad5bd9cb469fa16570867728950e',
'{0x01234567, 0x89ab, 0xcdef,{0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef}}'
)
$guidStrings | New-Guid

Guid
----
11c43ee8-b9d3-4e51-b73f-bd9dda66e29c
0f8fad5b-d9cb-469f-a165-70867728950e
01234567-89ab-cdef-0123-456789abcdef

Parameters

-Empty

Indicates that this cmdlet creates an empty GUID. An empty GUID has all zeros in its string.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False

-InputObject

This parameter accepts a string representing a GUID and converts it to a GUID object.

Type:	String
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

Outputs

Guid

This cmdlet returns a GUID.

Notes

The cmdlet passes string input to the constructor of the System.Guid class. The constructor support strings in several formats. For more information, see System.Guid(String).

When used without string input or the Empty parameter, the cmdlet creates a Version 4 Universally Unique Identifier (UUID). For more information, see System.Guid.NewGuid.

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