1.7 Mixing Command-Line and Option File Parameters
1.7.1 Problem
You'd rather not store your MySQL
password
in an option file, but you don't want to enter your
username and server host manually.
1.7.2 Solution
Put the username and host in the option file, and specify the
password interactively when you invoke mysql; it
looks both in the option file and on the command line for connection
parameters. If an option is specified in both places, the one on the
command line takes precedence.
1.7.3 Discussion
mysql first reads your option file to see what
connection parameters are listed there, then checks the command line
for additional parameters. This means you can specify some options
one way, and some the other way.
Command-line parameters take precedence over parameters found in your
option file, so if for some reason you need to override an option
file parameter, just specify it on the command line. For example, you
might list your regular MySQL username and password in the option
file for general purpose use. If you need to connect on occasion as
the MySQL root user, specify the user and password
options on the command line to override the option file values:
% mysql -p -u root
To explicitly specify "no password"
when there is a non-empty password in the option file, use
-p on the command line, and then just press Return
when mysql prompts you for the password:
% mysql -p
Enter password:  press Return here
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