Zip a file or multiple files

Open a PowerShell ISE and run the following code:

$SourcePath = "C:\PowerShellExercise\ZipOrUnzipFile\CustomerFiles"
$DestinationPath = "C:\PowerShellExercise\ZipOrUnzipFile\CustomerFiles"

Compress-Archive -Path $SourcePath -DestinationPath $DestinationPath

By default, I will use -Path variable, but if the source path contains special character likes C:\PowerShellExercise [ 1 ], then I will use -LiteralPath variable instead of -Path variable.

If there is a previous zipped file, add -Force or – Update parameter else it will throw an error message which said the file already exist.

Force parameter will overwrite the previous zipped file:

Compress-Archive -Path $SourcePath -DestinationPath $DestinationPath -Force 

Update parameter will add the latest file into existing zipped file:

Compress-Archive -Path $SourcePath -DestinationPath $DestinationPath -Update

Multiple files in multiple zipped file

$SourcePath = "C:\PowerShellExercise\ZipOrUnzipFile\Files"
$DestinationPath = "C:\PowerShellExercise\ZipOrUnzipFile\Files"

$folderlist = Get-ChildItem -Path $SourcePath 

Foreach ($folder in $folderlist)
{
    Compress-Archive -path "$($folder.Fullname)" -DestinationPath "$($folder.Fullname).zip" -Force
}

Unzip a file or multiple files

$SourcePath = "C:\PowerShellExercise\ZipOrUnzipFile\Files.zip"
$DestinationPath = "C:\PowerShellExercise\ZipOrUnzipFile\Files"

Expand-Archive -LiteralPath $SourcePath -DestinationPath $DestinationPath 

If there is a previous unzipped file, add -Force parameter to overwrite the previous one.