bash - 如何将空格和特殊字符的文件转换为bash中的索引字符串？

Question

我有一个文件consC，它是一行空格和 *，看起来像这样：

                                          **** **     *          

如何读入一个保持*位置完整而不丢失空格的字符串，然后获取*的索引

Answer 1

echo '          **  **   *****    *     ' > consC.txt
consC="$(cat consC.txt)"
echo "$consC"

Edit: One of the comments mentions that the second line can be simplified:

consC=$(< consC.txt)

• No need to use cat as < will do the job,
• and double-quotes not needed when using $(...) construct in an assignment

Although double-quotes are definitely needed in line 3: echo.

Answer 2

您还可以设置输入字段分隔符：

while IFS= read line; do
    echo "$line"
done < input