独立实用程序方法

iconv -f ISO-8859-1 -t UTF-8 in.txt > out.txt

-f ENCODING  the encoding of the input
-t ENCODING  the encoding of the output

您不必指定这两个参数中的任何一个。它们将默认使用您的当前语言环境，通常是UTF-8。

powershell:

function Recode($InCharset, $InFile, $OutCharset, $OutFile)  {
    # Read input file in the source encoding
    $Encoding = [System.Text.Encoding]::GetEncoding($InCharset)
    $Text = [System.IO.File]::ReadAllText($InFile, $Encoding)
    
    # Write output file in the destination encoding
    $Encoding = [System.Text.Encoding]::GetEncoding($OutCharset)    
    [System.IO.File]::WriteAllText($OutFile, $Text, $Encoding)
}

Recode Windows-1252 "$pwd\in.txt" utf8 "$pwd\out.txt" 

支持的编码名称列表:

https://learn.microsoft.com/en-us/dotnet/api/system.text.encoding

Visual Studio代码

Open your file in Visual Studio Code Reopen with Encoding: In the bottom status bar, to the right, you should see your current file encoding (eg "UTF-8"). Click this and select "Reopen with Encoding". Select the correct encoding of the file (eg: ISO 8859-2). Confirm that your content is displaying as expected. Save with Encoding: The bottom status bar should now display your new encoding format (eg: ISO 8859-2). Click this and choose "Save with Encoding" and select UTF-8 (or whatever new encoding you want).

注意:这将覆盖您的原始文件。先做备份。

独立实用程序方法

iconv -f ISO-8859-1 -t UTF-8 in.txt > out.txt

-f ENCODING  the encoding of the input
-t ENCODING  the encoding of the output

您不必指定这两个参数中的任何一个。它们将默认使用您的当前语言环境，通常是UTF-8。

写属性文件(Java)通常我在linux(薄荷和ubuntu发行版)使用这个:

$ native2ascii filename.properties

例如:

$ cat test.properties 
first=Execução número um
second=Execução número dois

$ native2ascii test.properties 
first=Execu\u00e7\u00e3o n\u00famero um
second=Execu\u00e7\u00e3o n\u00famero dois

PS:我用葡萄牙语写了第1 / 2个执行，以强制使用特殊字符。

以我为例，在第一次执行时，我收到了这样的消息:

$ native2ascii teste.txt 
The program 'native2ascii' can be found in the following packages:
 * gcj-5-jdk
 * openjdk-8-jdk-headless
 * gcj-4.8-jdk
 * gcj-4.9-jdk
Try: sudo apt install <selected package>

当我安装第一个选项(gcj-5-jdk)时，问题就解决了。

我希望这能帮助到一些人。

假设您不知道输入编码，并且仍然希望实现大部分转换的自动化，我总结了前面的答案，总结出这一行。

iconv -f $(chardetect input.text | awk '{print $2}') -t utf-8 -o output.text