How Can I Suppress MySQL Password Warning Messages in the Terminal?

Suppressing Warning Messages Generated by MySQL Commands in Terminal

When executing MySQL commands from the Terminal, users may encounter a recurring warning message: "Warning: Using a password on the command line interface can be insecure." This warning appears when using the format "mysql -u $user -p$password -e "statement"". While the command functions as intended, the persistent appearance of this warning can clutter the terminal window, especially when looped iteratively in a bash script.

Suppressing the Warning

One method to suppress the warning involves utilizing a configuration file. Create a file named "config.cnf" that contains the following:

[client]
user = "whatever"
password = "whatever"
host = "whatever"

where "whatever" represents your MySQL username, password, and host address.

Then, execute the MySQL command with the following syntax:

mysql --defaults-extra-file=/path/to/config.cnf

This command instructs MySQL to read the configuration file and suppress the warning. However, it's important to note that storing your password in a plain text file can pose a security risk.

Alternative Option: Removing Password from Script

To avoid potential security issues, consider not storing your password in the bash script. Instead, you could use a command like the following:

mysql -u $user -p

Mysql will then prompt you to enter your password securely. While this requires manually entering the password each time, it offers increased security.

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