在
shell中使用sort函数时,似乎只有一个字段排序时-k选项的首选语法是,例如-k5n,5.在这种情况下,5的优势是什么? -k5n的工作方式相同,或者至少对我而言.
参考文献:
> The man page seems to prefer this but also suggests it is optional
> This answer seems to prefer this syntax too