PowerShell backup File Script

The program needs to overwrite the backup file because of the project.

(The original solution is to use VB6 to traverse the file, do not spit slot)

Requirement 1: Check the modification time of each file, if it is less than the date parameter, then backup (and delete);

Requirement 2: Keep the directory structure of the backed up files.

Backing up files under Linux is simple, but we only have Windows Server.

Baidu is less than.

It took 2 hours to write a PowerShell script for performance ...

The words MS is basically rubbish compared with the open source scheme.

For example C # than Java, Windows Server than Linux, PowerShell than bash, etc...

1 Xargs solved the thing I have a TMD to write a loop.

Mdzz.

$scriptName = "Archive.ps1"; if (! ( $args. Count-eq 3) {write-host ("Usage-" + $scriptName + "<<source path>> <<destination Path>&gt ;
  <<beforeDate>> ");
exit-1;
} $pathFrom = $args [0];
$pathTo = $args [1];
$dateBefore = [datetime]::P arseexact ($args [2], "YYYY-MM-DD", $null);
Write-host ("Source path is:" + $pathFrom);
Write-host ("Destination path is:" + $pathTo);

Write-host ("Archive files whose modified date is before:" + $dateBefore); if (! ( (Test-path-path $pathFrom)-and (Test-path-path $pathTo)) {write-host ("source path or destination path is not existed
  !");
exit-1;
} $pathCopyTo = "";
$pathFromLen = $pathFrom. Length;
$LenGap = 0;

$LenGap 2 = 0; Ls-r $pathFrom |? {$_. Lastwritetime-lt $dateBefore} | foreach-object{$lenGap = $_. fullname.length-$pathFromLen-$_.
    Name.length-1; $pathCopyTo = $PathTo + $_.

    Fullname.substring ($pathFromLen, $LENGAP); Write-host ("copying" + $_.
    FullName + "to" + $pathCopyTo); if (! ( TeSt-path-path $pathCopyTo)) {write-host ("Creating folder" + $pathCopyTo);
    Mkdir-pa $pathCopyTo; } Copy-item $_.
FullName $pathCopyTo-force; } exit 0;