删除文本文件中出现的字符串 [英] Remove occurrences of string in text file

问题描述

如何从文本文件(命令行)中删除特定字符串，例如

How would you remove a specific string from a text file (command line) e.g.

hello
goodbye
goodbye
hello
hello
hello
goodbye

在这种情况下，我想删除所有出现的再见"

In this case I would like to remove all occurrences of "goodbye"

Linux或Windows(只要linux命令在GNU中可用)

Either linux or Windows, (as longs as the linux command is available in GNU)

推荐答案

sed -i -e 's/goodbye//g' filename

要删除多个单词，请执行以下操作:

To delete multiple words:

sed -i -e 's/\(goodbye\|hello\|test\|download\)//g' filename

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