Powershell csv 删除行

Question

I'm trying to delete rows from csv base off certain conditions in two columns. Status column if it has T and the second column is Term Date if the date is older then the past 5 days.

little info column STATUS has either "A" or "T".

$path = "data.csv"
$maxAge = (Get-Date).AddDays(-5).Date
Import-Csv $path | Where-Object {$_.STATUS -eq "A" -or $_.TERMDATE -gt $maxAge} | 
Export-Csv -Path temp.csv -NoTypeInformation

it works to a certain degree, but still shows dates from last year.

Answer 1

You will need to cast the TERMDATE value to a datetime object in order to make an accurate comparison.

$path = "data.csv"
$maxAge = (Get-Date).AddDays(-5).Date
Import-Csv $path |
    Where-Object {$_.STATUS -eq "A" -or [datetime]$_.TERMDATE -gt $maxAge} |
        Export-Csv -Path temp.csv -NoTypeInformation

If the [datetime] cast does not work, then you will need to parse the string and perform a conversion. In order to provide a solution for that, we need to know the original date format of TERMDATE .