I am using import-csv and creating a ps custom object.
There is a date property.
I am looking to group all the objects by the Week Begining Date
id like to use the below approach just not sure how i can include the weekly time span
heres what i got so far
$grouped = {
Switch ($_.WS) {
{$_ -ge 300MB} {"Large" ;break}
{$_ -ge 100MB} {"Medium" ;break}
{$_ -le 2MB} {"Small" ; break}
Default { "Normal"}
} #close switch
}
$MyObject | Sort $Grouped
First thing to understand is that importing from a CSV imports everything as a string. Depending on the date format, it has to be a sortable date\time.
#Sortable PS C:\Users\rsimmers> [Get-Date].Tostring["s"] 2015-04-09T09:03:30 #Not Sortable PS C:\Users\rsimmers> [Get-Date].ToShortDateString[] 4/9/2015 #Not Sortable PS C:\Users\rsimmers> [Get-Date].ToLongDateString[] Thursday, April 9, 2015
If you want to check the difference between dates or perform any date math, you’ll need to convert the string to a datetime data type. As an example, say the date is in this format: 1-10-2015
PS C:\Users\rsimmers> Get-Date "1-10-2015" Saturday, January 10, 2015 12:00:00 AM
You stated you want to sort it by week beginning, so it sounds like you are trying to sort by the week that something occurred. Unfortunately, there isn’t a default property like WeekOfYear like DayOfWeek and other default date properties:
PS C:\Users\rsimmers> [Get-Date "1-10-2015"] | Get-Member -MemberType Properties
TypeName: System.DateTime
Name MemberType Definition
---- ---------- ----------
DisplayHint NoteProperty Microsoft.PowerShell.Commands.DisplayHintType DisplayHint=DateTime
Date Property datetime Date {get;}
Day Property int Day {get;}
DayOfWeek Property System.DayOfWeek DayOfWeek {get;}
DayOfYear Property int DayOfYear {get;}
Hour Property int Hour {get;}
Kind Property System.DateTimeKind Kind {get;}
Millisecond Property int Millisecond {get;}
Minute Property int Minute {get;}
Month Property int Month {get;}
Second Property int Second {get;}
Ticks Property long Ticks {get;}
TimeOfDay Property timespan TimeOfDay {get;}
Year Property int Year {get;}
DateTime ScriptProperty System.Object DateTime {get=if [[] -ieq "Date"]...
If you take your CSV and use calculated properties you could get some sortable data to work with:
$myObject = Import-CSV C:\data.csv | Select Name, @{Label="Date";Expression{$[Get-Date -Date $_.Date]}}, @{Label="WeekOfYear";Expression{$[Get-Date -Date $_.Date -UFormat %W]}}
$myObject | Sort-Object -Property WeekOfYear
You'll need to test that your stored date in the CSV can be parsed by Get-Date. If not, you will need to possibly create a function to parse the date string. I've personally never used the WeekOfYear and the [a href="https://social.technet.microsoft.com/Forums/scriptcenter/es-ES/57663cae-5c0b-4718-889d-5d76cba6eb04/powershell-week-of-the-year?forum=ITCG"] first thread I read[/a] stated that the weeks might start on Wednesday versus Sunday or Monday, so you may want to test and read through this thread.
Thank you ! Great Info