Create folder with current date as name in powershell

Question

I am writing a powershell script. I would like to know how to create a folder with current date as name. The folder name should be "yyyy-MM-dd" (acording to the .NET custom format strings).

I know that to create folder I need to use this command:

New-Item -ItemType directory -Path "some path"

A possible solution could be (if I want to create the folder in the same directory as the script is:

$date = Get-Date
$date = $date.ToString("yyyy-MM-dd")
New-Item -ItemType directory -Path ".\$date"

Is there a way to chain the commands so I do not need to create the variable?

Answer 1

Yes.

New-Item -ItemType Directory -Path ".\$((Get-Date).ToShortDateString())"

or as alroc suggested in order to get the same formatting no matter the culture.

New-Item -ItemType Directory -Path ".\$((Get-Date).ToString('yyyy-MM-dd'))"

Answer 2

Don't use ToShortDateString() as @notjustme wrote; its formatting is dependent upon locale and your date format settings in the Regional & Language control panel. For example, on my PC right now, that would produce the following directory name:

C:\Users\me\09\18\2014

Explicitly set the format of the date string instead.

New-Item -ItemType Directory -Path ".\$((Get-Date).ToString('yyyy-MM-dd'))"