window nginx使用power shell分割日志

在window下使用nginx，一般网上推荐编写bat文件或者lograte的Windows版来分割日志。经过实践，直接使用power shell脚本更加方便，同时也不需要对nginx作出任何操作，提高服务的稳定性。

$nginxExePath = "C:\Users\ECSadmin\Documents\nginx-1.27.1.1\nginx.exe"
$nginxLogPath = "C:\Users\ECSadmin\Documents\nginx-1.27.1.1\logs\access.log"
$nginxRootDir = "C:\Users\ECSadmin\Documents\nginx-1.27.1.1"
$backupDir = "D:\logs_backup"
$daysToKeep = 10

New-Item -Path $backupDir -ItemType Directory -Force | Out-Null

if (Test-Path $nginxLogPath) {
    $nginxBackupName = "nginx_access_$(Get-Date -Format 'yyyyMMdd').log"
    Copy-Item $nginxLogPath "$backupDir\$nginxBackupName" -Force

    Set-Content $nginxLogPath -Value $null -Force
}

Get-ChildItem $backupDir | Where-Object {
    $_.LastWriteTime -lt (Get-Date).AddDays(-$daysToKeep)
} | Remove-Item -Force