bash 脚本无法处理文件名中的空格

bash script can't handle spaces in file names

我在网上找到了这个我正在尝试编辑的脚本,但在测试它时我发现它会为我拥有的所有文件吐出一堆错误 spaces .这是我在终端上得到的错误日志 window:

Skipping 1-03 as ./mp3/basename "$input_file" .wav.mp3 exists.
Skipping The as ./mp3/basename "$input_file" .wav.mp3 exists.
Skipping power, as ./mp3/basename "$input_file" .wav.mp3 exists.

这是脚本:

#!/bin/bash

# Title:        wav_to_mp3.sh
# Purpose:      Converts all WAV files present in the folder to MP3
# Author:       Karthic Raghupathi, IVR Technology Group LLC
# Last Revised: 2014.01.28

# references
sox="/usr/local/bin/sox"
sox_options="-S"

# variables
source_folder="${1:-.}"
destination_folder="${source_folder}/mp3"
environment="${2:-DEVELOPMENT}"

# check to see if an environment flag was supplied
if [ $environment = "PRODUCTION" ] || [ $environment = "production" ]; then
    sox="/usr/bin/sox"
    environment="PRODUCTION"
fi

# print all params so user can see
clear
echo "Script operating using the following settings and parameters....."
echo ""
echo "which SoX: ${sox}"
echo "SoX options: ${sox_options}"
echo "Environment: ${environment}"
echo "Source: ${source_folder}"
echo "Destination: ${destination_folder}"
echo ""

read -e -p "Do you wish to proceed? (y/n) : " confirm

if [ $confirm = "N" ] || [ $confirm = "n" ]; then
    exit
fi

# create destination if it does not exist
if [ ! -d "${destination_folder}" ]; then
    mkdir -p "${destination_folder}"
fi

# loop through all files in folder and convert them to
for input_file in $(ls -1  | grep .wav)
do
    name_part=`basename "$input_file" .wav`
    output_file="$name_part.mp3"

    # create mp3 if file does not exist
    if [ ! -f "$destination_folder/$output_file" ]; then
        $sox $sox_options "${source_folder}/$input_file" "$destination_folder/$output_file"
    else
        echo "Skipping ${input_file} as $destination_folder/$output_file exists."
    fi


done

我知道我应该让它转义 space 个字符,但我不知道如何转义。我尝试在这里和那里更改一些引号,但我只是打破它。

顺便说一句,如果有人愿意 link 一个学习如何在 Mac OS(或 Unix)上制作 bash 脚本的好教程,那将不胜感激。我已经知道一些网络编程,所以我不是一个完整的 n00b,但是,我仍然无法创建非常简单的脚本,我想独立学习而不是不断地窃听互联网寻求帮助:)

您可以通过在 space 前插入反斜杠字符来转义 space。

变化:

This file name

收件人:

This\ file\ name

编写一个函数来为您执行此操作可能是个好主意,遍历字符串中的每个字符并在任何 space 之前添加一个 \ 字符。这样你就不需要担心预先格式化文件名和转义每个人 space - 只需 运行 通过函数的文件名并捕获结果。

这是错误的:

for input_file in $(ls -1  | grep .wav)

查看 here 原因。另外,在 $1 内,试试看带空格的文件名是否有问题:

for i in $(ls -1 | grep wav); do echo $i; done 

试试这个:

for input_file in /*.wav