powershell regex select string in variable

Question

I am trying to create a script that select the four numbers that the company computer have in the host name.

I have tested the regex '\d{4}' in a regex web site, and it works fine to select the four numbers. but when using it with powershell y only get the $true or $false.

I need that the 4 numbers are keept in a variable for later use but i havent achieved it.

any ideas??

$machinename = "mac0016w701"
$test = $machinename -match '\d{4}'

$test2= Select-String -Pattern '\d{4}' -inputobject $machinename
$test2

TessellatingHeckler · Accepted Answer · 2016-07-01 03:47:56Z

1

-match is an operator which returns true/false, so you can use it in tests. If you want the values from the regex, it sets the magic variable $Matches, e.g.

PS D:\> 'computer1234' -match '\d{4}'
True
PS D:\> $matches[0]
1234

Alternately, you could use:

[regex]::Matches('computer1234', '\d{4}').Value

answered Jul 1, 2016 at 3:47

TessellatingHeckler

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