Automatically Delete Old Log Files with a Powershell Script
Clean Up Old Log Files Using a Scheduled PowerShell Script
I use a scheduled task to run a script very similar to this one every midnight to clean up log files on one of my servers.
It deletes any files in c:\logs that are more than 30 days old and any files in c:\special\logs that are more than 7 days old.
Just change the paths and retention times to suite your requirements.
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
# Filename : Clean_AlpLogs.ps1
# Purpose : Deletes all files under C:\Logs and
# : C:\Special\Logs older than the specified number of days.
# Days to keep c:\logs files.
$LogsRetention = 30
# Days to keep C:\Special\Logs files.
$SpecialLogsRetention = 7
# Make the retention times negative.
$LogsRetention = $LogsRetention * -1
$SpecialLogsRetention = $SpecialLogsRetention * -1
# Delete the old Logs files.
$Logs = (Get-ChildItem C:\Logs | `
?{$_.LastWriteTime -lt (Get-Date).AddDays($LogsRetention)})
$Logs | Remove-Item
# Delete the old Special\Logs files.
$SpecialLogs = (Get-ChildItem C:\Special\Logs | `
?{$_.LastWriteTime -lt (Get-Date).AddDays($SpecialLogsRetention)})
$SpecialLogs | Remove-Item
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