How to set password on MySQL via shell?

Question

MySQL

I've been suffering for the second hour, I'm rearranging the MySQL server on CentOS for the 5th time ...
I work through Xshell with VDS (CentOS 7). I install mysql:

yum install mysql mysql-server

service start mysqld works fine, but when I type mysql -u root -p I get this nonsense:

I type the password - nothing is entered in the console. I press enter - writes

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[[email protected] ~]#

When you try to do something from mysqladmin - writes the same, Access denied for user 'root'@'localhost' (using password: NO).
I didn't set any password. Then I tried mysqladmin -u root - p new_password - no effect, and on the Internet I found a recommendation to run "# /usr/bin/mysql_secure_installation" - so it throws the same Access denied error.
Help someone - what to do??

Answer 1

Why isn't this in the manual??? Just found this on stackoverflow:
And I spent three hours on this :/

Answer 2

Log in without a password without the option minus pe