Powershell Backup And Copy

BackupAndCopy.psm1

#
# BackupAndCopy.psm1
#
function BackupAndCopy
{
    [cmdletbinding(SupportsShouldProcess=$True)]
    param([string]$source, [string]$destination, [string]$backup)

    $backupPath = $("$backup\") + $(Split-Path $destination -Leaf) + "_"+ $(get-date -Format MM-dd-yyy_HH-mm-ss) + "\" 
    
    New-Item -ItemType Directory -Path $destination$Suffix -Force
    New-Item -ItemType Directory -Path $backupPath -Force

    New-PSDrive -Name src -PSProvider FileSystem -Root $source -Credential $credentials
    New-PSDrive -Name dest -PSProvider FileSystem -Root $destination$Suffix
    New-PSDrive -Name backup -PSProvider FileSystem -Root $backupPath

    echo "Backing up $destination to  excluding the Web.config"
    Copy-Item -Path dest:\* -Destination backup:\ -Recurse -Force -PassThru -Container

    echo "Copying files from $source to $destination excluding the Web.config"
    Copy-Item -Path src:\* -Destination dest:\ -Exclude @('Web.config') -Recurse -Force -PassThru -Container

    echo "Delete folders/files older "
    $limit = (Get-Date).AddDays(-7)
    Get-ChildItem -Path $backup -Force -Directory | Where-Object { $_.CreationTime -lt $limit } | Remove-Item -Force -Recurse -Verbose
}