Powershell - Count X of something in String

Question

Right so essentially I am storing a domain name into a variable - which then I need to split up later in my code into it's individual parts i.e.

$domainName = "testdomain.co.uk"
$domainNameSplit = $domainName.split(".")

echo $domainNameSplit[0]
echo $domainNameSplit[1]
echo $domainNameSplit[2]

In this instance it's fine as I know it's a .co.uk so will have 3 parts - however my code allows for input and therefore may take a testdomain.local format instead. How can I look through the $domainName variable and find the number of '.' in order to know what to do with it?

I also need to then use it in order to create a $ou variable to work with, so:

$ou = "DC=WhatWouldIPutHere?,DC=AndHere"

Thanks!

Norman Skinner · Accepted Answer · 2013-03-02 22:12:14Z

3

Just another suggestion:

$domainName = "testdomain.co.uk"

# Get Count
$PartCount = $domainName.Split(".").Count

# Make an OU
$ou = "DC=" + $domainName -replace "\.", ",DC="

answered Mar 2, 2013 at 22:12

Norman Skinner

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CB. · Accepted Answer · 2013-03-02 21:39:57Z

2

Just count the array length isn't enougth?

$domainName = "testdomain.co.uk"
$domainNameSplit = $domainName.split(".")

$domainNameSplitCount = $domainNameSplit.count

or to create a DN:

$domainName = "testdomain.co.uk"
$domainNameSplit = $domainName.split(".")
$a = [string]::empty
$domainNameSplit | % { $a+="DC=$_," }
$a.trim(',')

edited Mar 2, 2013 at 21:39

answered Mar 2, 2013 at 21:34

CB.

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4 Comments

PnP Over a year ago

What does the $_ symbolise in this case? That has always confused me

CB. Over a year ago

$_ is always the actual item processed in a pipe.

PnP Over a year ago

So the variable being used at the beginning of the pipeline?

CB. Over a year ago

$$domainNameSplit contains 3 string, the foresach-object process one string at time assigning the value to $_.

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