使用Powershell以不同的时间间隔删除文件

Question

我已经看过类似的问题，但是我决定发帖，因为我没有看到一个能够解决我所寻求的细微差别的问题。

我正在寻找一种方法来添加一个子句，只留下空文件，然后是用户维护的某些文件。

1. 单独保留所有空文件夹
2. 忽略指定的文件夹和文件类型

到目前为止，我有这个：

Start-Transcript C:\Temp3\filecleanup.log -Append
$folder_path = "[[-Path] <String[K:\]>"
# replace -90 with days before current date to be deleted
$1m = "-30"
$3m = "-90"
$6m = "-180"
$12m = "-360"
$18m = "-540"
$curr_date = Get-Date

#script for 30 days
$del_date1m = $curr_date.AddDays($1m)
Get-ChildItem $folder_path -Recurse [-Exclude <file folders, Applications, 
*.bat>] | Where-Object { $_.LastAccessTime -lt $del_date1m } | Remove-Item -
Force -Verbose

#script for 90 days
$del_date3m = $curr_date.AddDays($3m)
Get-ChildItem $folder_path -Recurse [-Exclude <file folders, Applications, 
*.bat>] | Where-Object { $_.LastAccessTime -lt $del_date3m } | Remove-Item -
Force -Verbose

#script for 180 days
$del_date1m = $curr_date.AddDays($6m)
Get-ChildItem $folder_path -Recurse [-Exclude <file folders, Applications, 
*.bat>] | Where-Object { $_.LastAccessTime -lt $del_date6m } | Remove-Item -
Force -Verbose

#script for 360 days
$del_date1m = $curr_date.AddDays($12m)
Get-ChildItem $folder_path -Recurse [-Exclude <file folders, Applications, 
*.bat>] | Where-Object { $_.LastAccessTime -lt $del_date12m } | Remove-Item 
-Force -Verbose

#script for 540 days
$del_date1m = $curr_date.AddDays($18m)
Get-ChildItem $folder_path -Recurse [-Exclude <file folders, Applications, 
*.bat>] | Where-Object { $_.LastAccessTime -lt $del_date18m } | Remove-Item 
-Force -Verbose
Stop-Transcript

Answer 1

此脚本使用所有月份的哈希表：

变量$exclude_file_types可以包含目录以及* .bat等文件的结尾。

首先，它找到非空目录，然后使用foreach在其中循环。第二个循环使用哈希表循环遍历所有月份。

修改

# if you want to recurse set to true
$recurse = $true

$folder_path = 'C:\prg'
# hash table to access it one month -> $time_definition.1m
$time_definition=@{'1m'="-30"; '3m'="-90"; '6m'="-180"; '12m'="-360"; '18m'="-540"}
Write-host "$time_definition.1m"

# Directories should be with full path
$excluded_directories = @("C:\prg\PowerShell\_Snippets\search_files_or_directories\test")
# Exclude any extension
$excluded_file_types = @("*.bat", "*.cmd", "*.ps1")


# Get all non-empty directories
# If you want to disable the top directory with the whole tree beneath it remove the -Recurse option
$get_full_directories = Get-ChildItem -Path $folder_path -Recurse:$recurse -exclude $excluded_directories | Where-Object {$_.PSIsContainer -eq $True} | Where-Object {!$_.GetFiles().Count -eq 0}
#search in those directories for all periods
foreach ($search_dir in $get_full_directories) {
    foreach ($time in $time_definition.GetEnumerator()) {
        # to check
        #write-host 'time_months:'$($time.Name);
        write-host 'Currently writing for these months:'$($time.Name);
        Get-ChildItem -Path $search_dir -recurse -exclude $excluded_file_types | Where-Object {$_.PSIsContainer -eq $FALSE} | where {$_.LastAccessTime -lt (get-date).adddays($time_definition.$($time.Name))} | Remove-Item -Force -Verbose
    }
}

我测试了除最后一个管道| Remove-Item -Force -Verbose之外的所有代码，但这应该可以很好地工作。