How Can I Suppress MySQL Password Warnings When Using Environment Variables?

Suppressing MySQL Warning Messages while Using Environment Variables for Password

When executing MySQL commands from the Terminal using environment variables for the password, a common issue arises: the issuance of a warning regarding the security risks of using a password on the command line. This warning can become bothersome, especially when running the command iteratively in a bash script.

Suppressing the Warning

To suppress the warning, an alternative method of specifying credentials can be used. Instead of passing the password as an environment variable with the -p$password flag, create a configuration file (e.g., config.cnf) that contains the credentials:

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

Then, execute the MySQL command with the --defaults-extra-file option, which specifies the path to the configuration file:

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

This method allows you to suppress the warning while maintaining the security of your password by storing it in a dedicated configuration file.

Addressing Security Concerns

While suppressing the warning eliminates the visual clutter, it does not address the underlying security concern. It is generally not recommended to store sensitive information such as passwords in plain text files. Instead, consider using more secure methods like credential managers or encrypted environment variables.

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