Friday 13th Part II

Richard's profileRichard Siddaway's BlogPhotosBlogLists

Tools

Help

< Previous Next >

November 14

No not the film

   001
002
003
004
005
006
007
008
009
010
011
012
013
 function get-fri13 {
<# .SYNOPSIS Calculates each Friday 13th for a given year .DESCRIPTION .PARAMETER year Specifies the year as an integer .EXAMPLE for current year get-fri13 for single year get-fr13 2010 for multiple years 2010..2020 | foreach {get-fri13 $_} .INPUTS Year as Integer #>
param (
    [parameter(ValueFromPipeline=$true)]
    [int]$year = (Get-Date).Year
    )
    1..12 | foreach {
        $d = [datetime]"$_/13/$year"
        if ($d.DayOfWeek -eq "Friday"){
            $d.ToLongDateString()
        }
    }
} 

With the last friday 13th out of the way for this year I thought I’d convert my script into a function while I was seeing what next year brings. Its the first function in my datetime module and I’ve added some comment based help.

One quick point – if you use mandatory=$true in the parameter block it overrides the default value and expects a value to be given

Technorati Tags: PowerShell,dates

5:14 PM | Blog it | PowerShell V2

Comments

To add a comment, sign in with your Windows Live ID (if you use Hotmail, Messenger, or Xbox LIVE, you have a Windows Live ID). Sign in

Don't have a Windows Live ID? Sign up

Trackbacks

The trackback URL for this entry is:

http://richardsiddaway.spaces.live.com/blog/cns!43CFA46A74CF3E96!2615.trak

Weblogs that reference this entry

None