使用Unix排序对多个键进行排序 [英] Sorting multiple keys with Unix sort

问题描述

我有一些潜在的大文件，需要按1-n键排序.其中一些键可能是数字键，有些则可能不是数字键.这是一个固定宽度的柱状文件，因此没有定界符.

I have potentially large files that need to be sorted by 1-n keys. Some of these keys might be numeric and some of them might not be. This is a fixed-width columnar file so there are no delimiters.

使用Unix排序是否有一个很好的方法?使用一个键，就像使用"-n"一样简单.我已经阅读了手册页并简短地搜索了Google，但没有找到一个很好的例子.我将如何实现这一目标?

Is there a good way to do this with Unix sort? With one key it is as simple as using '-n'. I have read the man page and searched Google briefly, but didn't find a good example. How would I go about accomplishing this?

注意:由于文件大小的可能，我已经排除了Perl.这将是最后的选择.

Note: I have ruled out Perl because of the file size potential. It would be a last resort.

推荐答案

使用-k选项(或--key=POS1[,POS2]).它可以出现多次，并且每个键都可以具有全局选项(例如n用于数字排序)

Use the -k option (or --key=POS1[,POS2]). It can appear multiple times and each key can have global options (such as n for numeric sort)

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