Syntax:
SHOW CREATE USER user

This statement shows the CREATE USER statement that creates the named
user. An error occurs if the user does not exist. The statement
requires the SELECT privilege for the mysql system schema, except to
see information for the current user. For the current user, the SELECT
privilege for the mysql.user system table is required for display of
the password hash in the IDENTIFIED AS clause; otherwise, the hash
displays as <secret>.

To name the account, use the format described in
https://dev.mysql.com/doc/refman/8.0/en/account-names.html. The host
name part of the account name, if omitted, defaults to '%'. It is also
possible to specify CURRENT_USER or CURRENT_USER() to refer to the
account associated with the current session.

Password hash values displayed in the IDENTIFIED WITH clause of output
from SHOW CREATE USER may contain unprintable characters that have
adverse effects on terminal displays and in other environments.
Enabling the print_identified_with_as_hex system variable (available as
of MySQL 8.0.17) causes SHOW CREATE USER to display such hash values as
hexadecimal strings rather than as regular string literals. Hash values
that do not contain unprintable characters still display as regular
string literals, even with this variable enabled.

URL: https://dev.mysql.com/doc/refman/8.0/en/show-create-user.html

