用powershell修改文件時間

轉載博客https://blog.csdn.net/u012223913/article/details/72123906

1. 步驟

新建一個bat文件，在其中添加語句：

@ECHO OFF
powershell.exe -command "ls 'folder_path\*.dll' | foreach-object { $_.LastWriteTime = Get-Date; $_.CreationTime = Get-Date }"
PAUSE

2. 解釋

代碼將folder_path路徑下的所有dll文件的創建時間和修改時間改成現在的時間。

• -command: tells powershell to run the following command and return immediately

• ls: list all matching files at the path specified

• foreach-object: run the following block on each file that ls found

• $_.LastWriteTime = Get-Date: for each file, set the LastWriteTime to the value returned by Get-Date (today’s date and time)

• $_.CreationTime = Get-Date： for each file, set the CreationTime to the value returned by Get-Date (today’s date and time)

3. 修改至指定時間

將$_.LastWriteTime = Get-Date:改爲$_.LastWriteTime = '01/11/2004 22:13:36'：

@ECHO OFF
powershell.exe -command "ls 'folder_path\*.*' | foreach-object { $_.LastWriteTime = '01/11/2004 22:13:36'; $_.CreationTime = '01/11/2004 22:13:36' }"
PAUSE

4. 遞歸文件夾中所有文件

@ECHO OFF
powershell.exe -command "Get-Childitem -path 'E:\project_llj\install\test\' -Recurse | foreach-object { $_.LastWriteTime = Get-Date; $_.CreationTime = Get-Date }" 
PAUSE