Subject: bug#62003: Report a bug

From: Paul Eggert <[email-masked]>
Date: Tue, 7 Mar 2023 12:16:10 -0800

On 3/6/23 05:54, Belinda Maxwell wrote:
> How can I undo this one my phone which is Huawei p8 lite 2017. This is the
> error I'm getting
> 
> When FILE is '-', read standard input.  With no FILE, read '.' if
> recursive, '-' otherwise.  With fewer than two FILEs, assume -h.
> Exit status is 0 if any line is selected, 1 otherwise;
> if any error occurs and -q is not given, the exit status is 2.

Not sure what you mean by "undo this one". That message is the output of 
the command "grep --help", so grep isn't doing anything that can be 
undone; it's just trying to give you a help message.