BOM添加到UTF-8文件 [英] Adding BOM to UTF-8 files

问题描述

我在寻找（没有成功）的脚本，这将工作作为一个批处理文件，并让我prePEND一个UTF-8文本文件，BOM的，如果它不具备的。

I'm searching (without success) a script, which would work as a batch file and allow me to prepend a UTF-8 text file with a BOM if it doesn't have one.

无论它是写在（Perl，Python和C，bash）的语言或它的工作原理上的问题对我的操作系统。我已经获得了广泛的计算机。

Neither the language it is written in (perl, python, c, bash) or the OS it works on matters to me. I have access to a wide range of computers.

我发现了很多脚本做反向（剥离BOM），这对我听起来是一种愚蠢的，因为很多Windows程序将无法读取UTF-8文本文件，如果他们没有一个BOM。

I've found a lot of script to do the reverse (strip the BOM), which sounds to me as kind of silly, as many Windows program will have trouble reading UTF-8 text files if they don't have a BOM.

我错过了明显？
谢谢！

Did I miss the obvious? Thanks!

推荐答案

我使用'文件'命令的 ICU 的'uconv'命令。

I wrote this addbom.sh using the 'file' command and ICU's 'uconv' command.

#!/bin/sh

if [ $# -eq 0 ]
then
        echo usage $0 files ...
        exit 1
fi

for file in "$@"
do
        echo "# Processing: $file" 1>&2
        if [ ! -f "$file" ]
        then
                echo Not a file: "$file" 1>&2
                exit 1
        fi
        TYPE=`file - < "$file" | cut -d: -f2`
        if echo "$TYPE" | grep -q '(with BOM)'
        then
                echo "# $file already has BOM, skipping." 1>&2
        else
                ( mv "${file}" "${file}"~ && uconv -f utf-8 -t utf-8 --add-signature < "${file}~" > "${file}" ) || ( echo Error processing "$file" 1>&2 ; exit 1)
        fi
done

编辑：添加围绕报价MV 参数。感谢@DirkR和高兴这个剧本一直如此的帮助！

edit: Added quotes around the mv arguments. Thanks @DirkR and glad this script has been so helpful!

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