Can't copy the file in Powershell

I am writing small script that copy files to special folder. The problem is in Copy command. It's claim me that I use wrong syntaxis to copy

$files = dir -r -path "Z:\graphics\" -i *.*

foreach ($file in $files)
{
    copy -path $file Z:\SatData\graphics\LastDays\
}

Also I want to create script that calculate size of files created 1day ago. I try to do next:

$today = Get-Date
$now = $today.Day
$now

$lastdays = $today.AddDays(-1)
$lastdays

$files = dir -r -path "Z:\graphics\" -i *.*

foreach ($file in $files) 
{
if ($file.CreationTime -eq $lastdays) # if file was create yesterday calculate it
    {
    $sum
    $sum = $sum + $file.length
    $sum/1MB

    $file.CreationTime

    }
else {}
}

The script simply do not find any files created yesterday, and I do now see any output. It's work only if set not -eq, but -lt but yesterday created files are present in folde开发者_开发问答r

Use the pipeline:

dir -r -path Z:\graphics | copy-item -dest Z:\SatData\graphics\LastDays

To calculate files sizes (in MB):

$files = dir -r -path Z:\graphics | 
         where {-not $_.PSIsContainer -and $_.CreationTime.Date -eq (Get-Date).AddDays(-1).Date} |
         measure -sum

$files.sum/1mb

In your copy statement you need to reference the actual path because dir is returning a fileinfo object. For example: copy -path $file.FullName Z:\SatData\graphics\LastDays\

The second part of your question $now is a day number not a date. Try something like $yesterday = (get-date).adddays(-1).date and change your comparison to if ($file.CreationTime.date -eq $yesterday)

You need to use the date property because it sets the time to 00:00:00 for the comparison. If you don't you'll never match.

For the first part, use $file.FullName instead of just $file.