处理数组中包含空格的文件和目录列表

Question

如何最好地处理数组中文件和目录的混合。我需要创建一个由文件和文件夹组成的数组，循环遍历该数组，并将该数组中的每一项都应用于带有-rf选项的rm命令：

#Build array of files to be deleted

FILES=(
"~/Library/Preferences/Adobe InDesign"
"~/Library/Caches/Adobe InDesign"
"~/Library/Saved Application State/com.adobe.InDesign.savedstate"
)


#Loop through array deleting each file/directory with the recursive force options

    for i in "${FILES[@]}"

      do

        rm -rf "$i"

      done

    exit

Answer 1

问题不在于数组或空格，而在于文件路径中的~。~实际上不是路径的有效部分，但外壳程序会将其替换为主目录的路径...除非它在引号中：

$ echo ~/Library/Preferences/Adobe InDesign
/Users/gordon/Library/Preferences/Adobe InDesign
$ echo "~/Library/Preferences/Adobe InDesign"
~/Library/Preferences/Adobe InDesign

因此，您可以将~放在引号之外：

FILES=(
~/"Library/Preferences/Adobe InDesign"
~/"Library/Caches/Adobe InDesign"
~/"Library/Saved Application State/com.adobe.InDesign.savedstate"
)

或者使用$HOME (用双引号将其替换)：

FILES=(
"$HOME/Library/Preferences/Adobe InDesign"
"$HOME/Library/Caches/Adobe InDesign"
"$HOME/Library/Saved Application State/com.adobe.InDesign.savedstate"
)

Answer 2

我有时会用到这个技巧：

with_expanded_paths()
{
  typeset IFS
  IFS=""
  "$@"
}
with_expanded_paths rm -rf "~/file with spaces"

我是从内存中写的，所以可能需要做一些细微的调整。