问题
I would like to change the creation date of the files that I generate with this script :
$clientname = Read-Host "Enter the client name"
$path = Read-Host "Enter the complete path of .bak files"
$time = "01-00-00"
$space = " "
for ($i = 0; $i -lt 7;$i++)
{
$date = (Get-Date).AddDays(-1-$i).ToString('yyyy-MM-dd')
New-Item -ItemType file $path$clientname$space$date$space$time.bak
}
So it gives me theses files :
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a--- 16/08/2013 16:55 0 client 2013-08-15 01-00-00.bak
-a--- 16/08/2013 16:55 0 client 2013-08-14 01-00-00.bak
-a--- 16/08/2013 16:55 0 client 2013-08-13 01-00-00.bak
-a--- 16/08/2013 16:55 0 client 2013-08-12 01-00-00.bak
-a--- 16/08/2013 16:55 0 client 2013-08-11 01-00-00.bak
-a--- 16/08/2013 16:55 0 client 2013-08-10 01-00-00.bak
-a--- 16/08/2013 16:55 0 client 2013-08-09 01-00-00.bak
I want to modify the LastWriteTime property of each files, I want it to be the same as the date in the file name.
Example for this file "client 2013-08-15 01-00-00.bak" the LastWriteTime will be "15/08/2013 01:00"
I'm stuck and I do not how can we do that
Thank you
回答1:
Not tested, but try this in your loop after you call New-Item:
$file = Get-ChildItem $path$clientname$space$date$space$time.bak
$file.LastWriteTime = (Get-Date).AddDays(-1-$i)
If you want to see a full listing of things you can do with FileInfo objects, try calling $file | gm in your powershell console. You could also view the docs on MSDN.
回答2:
for ($i=0; $i -lt 7;$i++)
{
$date = (Get-Date).AddDays(-1-$i)
$filedate = $date.ToString('yyyy-MM-dd')
$file = New-Item -ItemType File $path$clientname$space$filedate$space$time.bak
$file.LastWriteTime = $date
}
来源：https://stackoverflow.com/questions/18276452/how-to-set-lastwritetime-property-of-a-file