How to list files from a folder and get the files that got modified today

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Hello,
I need to list the files of a certain folder with the following conditions.
*If Monday, check for 5 files that got modified today. If there are not 5 files or if the counting is less than five, send an email about files missing

On Tuesday til Friday, check for 4 files that got modified today. If there are not 4 files or if the counting is less than four, send an email about files missing

$now = Get-Date
$strDate = "{0:yyyyMMdd}" -f ($now)
$folder = "\\up3\ftp\Backup"
If ($now.DayOfWeek -eq "Monday") {
   #Look for 5 files modified today
   #If 5 files modified today is true 
   # { All files found }
   #Else if there are no 5 files or are less than 5, send an email Files missing
}
 #Look for 4 files modified today
 #If 4 files modified today is true 
 # { All files found }
 #Else if there are no 4 files or are less than 4, send an email Files missing

Thanks for your help,

Posted 2-Apr-13 7:11am

namerg

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Comments

Nelek 2-Apr-13 13:22pm

And where are you having problems? You just explained your requirements, but did no question at all.

Sergey Alexandrovich Kryukov 2-Apr-13 14:20pm

I was able to see at least one problem, explained how to fix it. Please see my answer...
—SA

namerg 2-Apr-13 13:50pm

well do not know how to do it...

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-04-02T08:18:00

The first problem I can see is that your calculated $now is not really the date. Yes, this is a bit confusing…

"Today" means that you need to check up if some time is greater of equal the any time of the same date. This is not what happens in your code. Let me run this code right now:

$date = Get-Date
# printing it:
$date
# and, to compare:
$date.Date

Output:

Tuesday, April 02, 2013 2:06:38 PM
Tuesday, April 02, 2013 12:00:00 AM

Can you see what's going on? In first case, you get not the very beginning of the day, but just the current time. The function Get-Date happens to wrap the static property System.DateTime.Now (which you can also use); and its name is very confusing.

The correct comparison of the date with the file time can be like this:

$date = Get-Date # now
# same as:
# [System.DateTime]::Now
$date = $date.Date

# ...

$file_time = # file creation time...

# ...

$select = $file_time -ge $date

Now, you can use it in the query like this:

$date = Get-Date # now
$date = $date.Date
$file_array = Get-ChildItem | where { $_.CreationTime.Date -ge $date } # any time today and later

In your final code, you should also apply your logic taking into account the day of week, which you already have.

Pay attention for the sample of the syntax [System.DateTime]::Now. This is how you can use almost all power of .NET FCL, and more: you can additionally load extra GAC assemblies, that is, everything else which was installed in GAC on top of .NET FCL, and use it all.

I tested all my code samples…

—SA