如何使用 awk/sed 更改小数点分隔符? [英] How to change the decimal separator with awk/sed?

问题描述

如何使用 sed 或 awk<将数字格式(不同的小数分隔符)从 XXXXXX.XXX 更改为 XXXXXX,XXX/代码>?

How to change number format (different decimal separator) from XXXXXX.XXX to XXXXXX,XXX using sed or awk?

推荐答案

你想要多严格?您可以更改所有 . 字符，正如其他人所建议的那样，但是如果您有更多的数字，这将允许很多误报.更严格的是要求点的两边都有数字:

How rigorous do you want to be? You could change all . characters, as others have suggested, but that will allow a lot of false positives if you have more than just numbers. A bit stricter would be to require that there are digits on both sides of the point:

$ echo 123.324 2314.234 adfdasf.324 1234123.daf 255.255.255.0 adsf.asdf a1.1a |
>   sed 's/([[:digit:]]).([[:digit:]])/1,2/g'
123,324 2314,234 adfdasf.324 1234123.daf 255,255,255,0 adsf.asdf a1,1a

这确实允许在一些奇怪的情况下进行更改，即 255.255.255.0 和 a1.1a，但可以干净地处理正常"数字.

That does allow changes in a couple of odd cases, namely 255.255.255.0 and a1.1a, but handles "normal" numbers cleanly.

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