如何在Linux上重置配置文件？

Question

I have got an Amazon EC2 instance. I edited etc/profile , which has resulted in something terrible. Now, I am not able to connect to the instance from Filezilla . I am able to connect through putty but the terminal opens with lot of text. I am definitely sure this is all because of something accidental changes that I created in profile .

Is there any way I can reset etc/profile to its earlier version?

Answer 1

There is no way to revert to the previous version if you dont have a backup of the file / snapshot of the instance ...

Depends if you already made change but if you want the default version, you can spin up a new ec2 instance of the same type, copy the /etc/profile from the new instance into your current instance. All this can be done within an hour so it will cost you only 1 hour of an additional ec2 instance.