转换Windows的OS X Bash脚本 [英] Translating OS X Bash Script for Windows

问题描述

我使用对冲转移神奇的灯笼在我的佳能5D Mark III上拍摄的视频文件.

I use Hedge to transfer Magic Lantern video files shot on my Canon 5D Mark III.

在OS X上，我可以使用Automator设置bash脚本，以执行mlv_dump 将文件从MLV传输到cDNG序列中.

On OS X, I'm able to use Automator to set up a bash script, to execute an mlv_dump to transfer the files from MLV into cDNG sequences.

我当前使用的脚本是:

cd "$(dirname "$1")"
for f in "$@"; do
    if [[ -f $f ]]; then
        filename=${f##*/};
        folder=${filename%.*}
        mkdir "${folder}";

        ~/mlv_dump --dng $f -o ${folder}/${folder}_;
    fi
done

这可以轻松转换为Windows等效语言吗?

Can this easily translate into a Windows equivalent?

谢谢，
托马斯

Thanks,
Thomas

推荐答案

与编程语言之间的任何翻译一样，存在(a)一种 as-literal-as-possible 方法，该方法与(b)，一种不是很明显但是很灵巧的目标语言方法.
(b)从长远来看始终是可取的.

As with any translation between programming languages, there's (a) an as-literal-as-possible approach, which contrasts with (b), an not-immediately-obvious-but-in-the-spirit-of-the-target-language approach.
(b) is always preferable in the long run.

使用PowerShell ，因为它是命令提示符"( cmd.exe )及其批处理文件的继任者.以下代码尝试使用 PowerShell (v3 +语法)尝试(b).

Use PowerShell, because it is the - far superior - successor to the "Command Prompt" (cmd.exe) and its batch files.
The code below is an attempt at (b), in PowerShell (v3+ syntax).

我鼓励您研究代码并在自己的答案中发布代码解释，以使其他人也可以从中受益.

I encourage you to study the code and post an explanation of it in an answer of your own, so that others may benefit too.

为帮助进行分析，请考虑以下资源:

To help with the analysis, consider the following resources:

• Windows PowerShell官方入门页面和PowerShell Core .

此

This series of articles is a great, recipe-oriented introduction to PowerShell.

http://hyperpolyglot.org/shell 将类似POSIX的shell的语法并列，例如以 bash 的形式与 cmd.exe 的形式一起使用，并以简明的表格形式显示PowerShell.

http://hyperpolyglot.org/shell juxtaposes the syntax of POSIX-like shells such as bash with that of cmd.exe and PowerShell in concise, tabular form.

param(
  [Parameter(Mandatory, ValueFromRemainingArguments)]
  [System.IO.FileInfo[]] $LiteralPath
)

$outputBaseFolder = Split-Path -Parent $LiteralPath[0].FullName
foreach ($f in $LiteralPath) {
  if ($f.exists) {
    $outputFolder = Join-Path $outputBaseFolder $f.BaseName
    New-Item -ItemType Directory $outputFolder
    & "$HOME/mlv_dump" --dng $f.FullName -o "$outputFolder/$($f.BaseName)_"
  } else {
    Write-Warning "Item doesn't exist or is not a file: $($f.FullName)"
  }
}

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