PowerShell Script to Schedule daily Site collections backup and retention policy for backup files

PowerShell Script to Schedule daily Sites collection backup and retention policy for backup files

Add-PsSnapin Microsoft.SharePoint.Powershell –ErrorAction SilentlyContinue
try
{
$today = (Get-Date -Format dd-MM-yyyy)
 [IO.Directory]::CreateDirectory("D:\SharePointBackups\Production_$today")

Backup-SPSite -Identity http://sitea.domain.com/ -Path D:\SharePointBackups\Production_$today\SiteA.bak
Backup-SPSite -Identity http://siteb.domain.com/ -Path D:\SharePointBackups\Production_$today\SiteB.bak
Backup-SPSite -Identity http://sitec.domain.com/ -Path D:\SharePointBackups\Production_$today\SiteC.bak
Backup-SPSite -Identity http://sited.domain.com/ -Path D:\SharePointBackups\Production_$today\SiteD.bak
}
catch
{
"No sites found!!!!"
}
#Retention policy for old backup files
try
{
# set folder path
$dump_path = "D:\SharePointBackups"

# set min age of files
$max_days = "-5"

# get the current date
$curr_date = Get-Date

# determine how far back we go based on current date
$del_date = $curr_date.AddDays($max_days)

# delete the files
Get-ChildItem $dump_path -Recurse | Where-Object { $_.LastWriteTime -lt $del_date } | Remove-Item  -force -Confirm:$false -ErrorAction:SilentlyContinue;

}
catch
{
"No path found!!!"
}