在SED更换控制字符 [英] Replacing Control Character in sed

问题描述

我需要更换控制字符CTRL + A（SOH / ASCII 1）中出现的所有在Linux中的文本文件，这怎么能在SED能实现吗？

I need to replace all occurrences of the control character CTRL+A (SOH/ascii 1) in a text file in linux, how can this be achieved in SED?

推荐答案

这可以通过做猫与 -v （等效于 - 显示 - 非打印选项和管道到这一点 SED ）

This can be done through cat with the -v (equivalently --show-nonprinting options and piping this into sed).

如果控制字符标题开始（SOH）字符（CTRL + A / ASCII 1），我们希望有一个标签来取代它，我们会做到以下几点：

If the control character the start of heading (SOH) character (CTRL+A / ASCII 1), and we want to replace it with a tab, we would do the following:

cat -v file | sed 's/\^A/\t/g' > out

猫-v 将替换^ A，那么这将在 SED 相匹配并替换字符SOH

cat -v would replace the SOH character with ^A, which would then be matched and replaced in sed.

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