First, let's remove the 'd' — we're using the same deleteline command that we've used previously.
首先,让我们除去' d '——这是我们前面所使用的同一个删除行命令。
2
So we need to deleteline 123 from the known_hosts file, which you can do with any text editor you want. Given a standard UNIX setup, you can do it automatically.
你可以用任何文本编辑器来删除known_hosts文件中的第123行。
3
If an entry exists, then delete the line containing the entry.