将csv中的列转换为日期powershell [英] casting column from csv as date powershell

问题描述

我有一个与此相似的csv

I have a csv that is similar to this

"fundName","MMFcusip","ticker","AsOfDate","SumHoldingPercent"
"BlackRock OH Muni MMP/Instit","'091927236'","COIXX","2/29/2012 12:00:00 AM","100.00000000200"
"Western Asset Inst US Treas Res","'52470G841'","CIIXX","2/29/2012 12:00:00 AM","100.00000000200"

使用powershell，如何在使用import-csv cmdlet时将"asOfDate"转换为日期/时间?

Using powershell, how can I cast the "asOfDate" as a date/time when using the import-csv cmdlet?

这是我目前正在使用的代码行

this is the line of code that I'm currently working with

$measuredDate = $today.AddDays(-21)
$staleDates = Import-Csv d:\path\file.csv | Foreach-Object {$_.AsOfDate = Get-Date $_.AsOfDate} | Where-Object {asOfDate -lt $measuredDate} | Measure-Object

推荐答案

Import-Csv file.csv |
Where-Object { ![string]::IsNullOrWhiteSpace($_.AsOfDate) } | 
Foreach-Object {
   $_.AsOfDate = $_.AsOfDate -as [datetime]
   $_
}

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