PowerShell string manipulation

Question

I have a requirement to find DNS registered hostname of a given IP via PowerShell. Could someone please tell me how can I store computer name alone (“mysystem” in below example) to a variable from below output.

$Hostname = [System.Net.Dns]::GetHostEntry($ipAddress)

HostName                 Aliases         AddressList                                                 
--------                 -------         -----------                                                 
mysystem.mycountry.company.com         {}              {fe80::50d6:7029:f655:f955%11,

Adi Inbar · Accepted Answer · 2013-09-22 15:21:54Z

1

Simple. In PowerShell, the return results are always objects. The column headings in the return results (or labels, of the return results are in list format) are properties of the object that's returned. So instead of assigning the whole object to $Hostname, just assign the object's HostName property:

$Hostname = ([System.Net.Dns]::GetHostEntry($ipAddress)).HostName

answered Sep 22, 2013 at 15:21

Adi Inbar

12.4k13 gold badges60 silver badges71 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Ansgar Wiechers · Accepted Answer · 2013-09-22 15:26:06Z

1

Take just the HostName property and split it at dots:

$Hostname = ([Net.Dns]::GetHostEntry($ipAddress).HostName -split '\.')[0]

answered Sep 22, 2013 at 15:26

Ansgar Wiechers

202k27 gold badges286 silver badges363 bronze badges

1 Comment

Adi Inbar Over a year ago

Ah, yes...I overlooked the part about wanting just the first part, not the whole FQDN. So this answer is more complete.

Collectives™ on Stack Overflow

PowerShell string manipulation

2 Answers 2

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related