linux的sort命令的异常行为 [英] Unusual behaviour of linux's sort command

问题描述

在Linux shell上，echo -e "arrays2 2\narrays 2\narrays3 2" | sort的结果为

On Linux shell the result of echo -e "arrays2 2\narrays 2\narrays3 2" | sort is

arrays  2
arrays2 2
arrays3 2

，echo -e "arrays2 28\narrays 28\narrays3 28" | sort的结果是

arrays2 28
arrays 28
arrays3 28

为什么在第二种情况下字符串arrays2 28出现在第一行. 这是一个错误，还是我错过了什么?

Why in the second case the string arrays2 28 appears on first line. Is this a bug, or I miss something?

我在RHEL4和Ubuntu 11.04上进行了尝试.

I tried this on RHEL4 and Ubuntu 11.04.

谢谢.

推荐答案

行为与语言环境有关:

echo -e "arrays2 28\narrays 28\narrays3 28" | LANG=C sort

打印

arrays 28
arrays2 28
arrays3 28

而

echo -e "arrays2 28\narrays 28\narrays3 28" | LANG=de_DE.UTF-8 sort

打印

arrays2 28
arrays 28
arrays3 28

(请注意，必须安装语言环境才能产生此效果，如果该语言环境不存在，其行为将与LANG=C相同).

(Note that the locale must be installed for this to have this effect, if the locale doesn't exist, the behaviour will be the same as with LANG=C).

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