Bash：用指数对数字进行排序
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Bash: sort numbers with exponents
提问by Fungsten
I was trying to sort one file with numeric values like this:
我试图用这样的数值对一个文件进行排序：
414e-05
435e-05
0.5361
0.7278
0.1341
0.9592
0.2664
With sort all the numers get sorted except for the ones with the exponent, is there some way for sort function to evaluate this expression?
使用 sort 对所有数字进行排序，除了那些带有指数的数字，排序函数是否有某种方法来评估这个表达式？
回答by unwind
If your version of the sort command is new enough, it should support the -goption (or --general-numeric-sort)if you like your options long). It is described like this in the info manual:
如果您的 sort 命令版本足够新，它应该支持该-g选项（或者--general-numeric-sort)如果您喜欢您的选项）。它在信息手册中是这样描述的：
Sort numerically, using the standard C function
strtodto convert a prefix of each line to a double-precision floating point number. This allows floating point numbers to be specified in scientific notation, like '1.0e-34' and '10e100'.
数字排序，使用标准 C 函数
strtod将每行的前缀转换为双精度浮点数。这允许以科学记数法指定浮点数，例如“1.0e-34”和“10e100”。
回答by dogbane
回答by mob
perl -e 'print sort { $a<=>$b } <>' < input-file
回答by Louis Gagnon
I don't have enough rep. to comment, so I am writing this to complement the accepted answer:
我没有足够的代表。发表评论，所以我写这篇文章是为了补充接受的答案：
for those who have locales which use a comma instead of a period to indicate decimals, the sorting of decimals will not work properly, as pointed out by HongboZhu
对于那些使用逗号而不是句点来表示小数的语言环境，小数的排序将无法正常工作，如 HongboZhu 所指出的
Solution: the sorting of lists with period-delimited numbers will work properly when using something like the following command (important is the LC_ALL=C):
解决方案：使用以下命令（重要的是 LC_ALL=C）时，以句点分隔的数字的列表排序将正常工作：
ls yourFolder|LC_ALL=C sort -g
This solution comes from the following post: https://unix.stackexchange.com/questions/506965/bash-sort-g-does-not-work-properly
此解决方案来自以下帖子：https: //unix.stackexchange.com/questions/506965/bash-sort-g-does-not-work-properly
