bash Linux 排序不适用于负浮点数
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Linux sort doesn't work with negative float numbers
提问by tsusanka
How to sort this kind of input?
如何对这种输入进行排序？
0.00159265291648695254
-0.00318530179313823899
0
0.00999983333416666468
0.00362937767285478371
0.00477794259012844049
-0.00637057126765263261
0.00681464007477014026
-0.00840724736714870645
-0.00522201549675090458
Either sort -n dataand sort -g dataprocudes this:
要么sort -n data并sort -g data产生这个：
0
0.00159265291648695254
-0.00318530179313823899
0.00362937767285478371
0.00477794259012844049
-0.00522201549675090458
-0.00637057126765263261
0.00681464007477014026
-0.00840724736714870645
0.00999983333416666468
On the other hand -1.whateverwould be in front of the zero. I need the sort to notice the minus signs. Thank you.
另一方面-1.whatever将在零之前。我需要排序来注意减号。谢谢你。
回答by tsusanka
All those troubles did my local settings. My ubuntu is in Czech:
所有这些麻烦都影响了我的本地设置。我的 ubuntu 是捷克语：
$ echo $LANG
cs_CZ.UTF-8
In this local setting it's not a decimal point, rather a decimal comma that seperates integer from the rest (as we were thought in math classes, in our language we really do write comma instead of a point).
在这个本地设置中，它不是一个小数点，而是一个将整数与其他整数分开的十进制逗号（正如我们在数学课上所认为的那样，在我们的语言中，我们确实写了逗号而不是点）。
Therefore:
所以：
echo '0,03 >> 0,4 >
> -0,3 >
> 0' | sort -n
> 0
> -0,3 >
> 0,4 >
0,03 >
If you are writing a bash script, set the sorting routine to use the "normal" settings.
如果您正在编写 bash 脚本，请将排序例程设置为使用“正常”设置。
export LC_ALL=C
回答by Diego Torres Milano
The problem may be in your sort command. If I run the same my result is as expected:
问题可能出在您的排序命令中。如果我运行相同的结果，则符合预期：
$ echo '0.00159265291648695254
> -0.00318530179313823899
> 0
> 0.00999983333416666468
> 0.00362937767285478371
> 0.00477794259012844049
> -0.00637057126765263261
> 0.00681464007477014026
> -0.00840724736714870645
> -0.00522201549675090458' | sort -n
-0.00840724736714870645
-0.00637057126765263261
-0.00522201549675090458
-0.00318530179313823899
0
0.00159265291648695254
0.00362937767285478371
0.00477794259012844049
0.00681464007477014026
0.00999983333416666468
You shoud use GNU sort if not using it
如果不使用它，你应该使用 GNU sort
sort (GNU coreutils) 5.93
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