什么版本的sort才能用+n选项

JasonSei

什么版本的sort才能用+n选项？我的好像不行。

$ sort --version
sort (GNU coreutils) 5.93
Copyright (C) 2005 Free Software Foundation, Inc.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

1. 
   
2. df | sort -b -r +4
   
3. sort: open failed: +4: No such file or directory
   

复制代码

awk就是awp加ak

1. !我的版本

复制代码

JasonSei

有没有人知道，谢谢了