另一个要关注的选项是- b，它告知sort忽略空白字符(空格、跳格等等)并将行中的第一个非空白字符当做是排序键的开始。

Another option to watch out for is -b, which tells sort to ignore blank characters (Spaces, tabs, etc.) and treat the first non-blank character on the line as the start of the sort key.

youdao

这包含行开头的空白字元。

This includes whitespace at the start of the line.

youdao