根据照片拍摄时间批量重命名文件

这几天一直想给照片搞个备份，在寻找一个性价比比较高而且又比较稳定的方案，现在还没找到，先进行图片整理工作。整理过程中想把所有文件名统一一下，于是总结了这个脚本。

需要提前从 exiftool.org 下载 exiftool.exe，用于读取图片或视频的 EXIF 信息。

PowerShell 脚本

$currentDirectory = Get-Location

# 处理图片
$imageFiles = Get-ChildItem -Path $currentDirectory -File |
    Where-Object { $_.Extension -match '\.(jpg|jpeg|png|gif)' }

foreach ($imageFile in $imageFiles) {
    $dateTaken = & "D:\exiftool.exe" "-DateTimeOriginal" "-d" "%Y%m%d_%H%M%S" "-s" $imageFile.FullName
    $dateTaken = $dateTaken.Trim() -replace ".*: ", ""
    if ($dateTaken -ne "") {
        $newFileName = "IMG_$dateTaken$($imageFile.Extension)"
        $newFilePath = Join-Path -Path $currentDirectory -ChildPath $newFileName
        while (Test-Path $newFilePath) {
            $year = [int]($dateTaken.Substring(0, 4))
            $month = [int]($dateTaken.Substring(4, 2))
            $day = [int]($dateTaken.Substring(6, 2))
            $hour = [int]($dateTaken.Substring(9, 2))
            $minute = [int]($dateTaken.Substring(11, 2))
            $second = [int]($dateTaken.Substring(13, 2))
            $newDate = Get-Date -Year $year -Month $month -Day $day -Hour $hour -Minute $minute -Second $second
            $newDate = $newDate.AddSeconds(1)
            $dateTaken = $newDate.ToString("yyyyMMdd_HHmmss")
            $newFileName = "IMG_$dateTaken$($imageFile.Extension)"
            $newFilePath = Join-Path -Path $currentDirectory -ChildPath $newFileName
        }
        Rename-Item -Path $imageFile.FullName -NewName $newFilePath -Force
    }
    Write-Host $imageFile
}

# 处理视频
$videoFiles = Get-ChildItem -Path $currentDirectory -File |
    Where-Object { $_.Extension -match '\.(mp4|mov|avi|mkv)' }

foreach ($videoFile in $videoFiles) {
    $mediaCreateTime = & "D:\exiftool.exe" "-MediaCreateDate" "-d" "%Y%m%d_%H%M%S" "-s" $videoFile.FullName
    $mediaCreateTime = $mediaCreateTime.Trim() -replace ".*: ", ""

    if ($mediaCreateTime -ne "") {
        $newFileName = "VID_$mediaCreateTime$($videoFile.Extension)"
        $newFilePath = Join-Path -Path $currentDirectory -ChildPath $newFileName

        if ($videoFile.Name -ne $newFileName) {
            Rename-Item -Path $videoFile.FullName -NewName $newFilePath -Force
        }
    }
    Write-Host $videoFile
}

Write-Host "重命名完成。"

图片重命名为 IMG_YYYYMMDD_HHMMSS.ext，视频为 VID_YYYYMMDD_HHMMSS.ext。如果目标文件名已存在，自动递增一秒避免冲突。