Which option is used to pass variable values to Terraform from the command line?

Which option is used to pass variable values to Terraform from the command line?

• A. -var flag
• B. -var-file flag
• C. -var-generate
• D. -env

Answer: (A)

Passing values to Terraform from the command line is done with the -var flag. This flag accepts key=value pairs directly on the screen, allowing you to override or set variable values without editing any configuration files. You can supply multiple -var flags to configure several variables at once, for example: terraform apply -var="region=us-east-1" -var="instance_count=3". While there’s also -var-file to load many variables from a file, the direct CLI method for single or ad-hoc values is the -var flag. Other options like -var-file read from files, -var-generate isn’t a valid Terraform CLI option, and -env isn’t a Terraform flag (though you can use environment variables with the TF_VAR_ prefix to influence variables).

Passing values to Terraform from the command line is done with the -var flag. This flag accepts key=value pairs directly on the screen, allowing you to override or set variable values without editing any configuration files. You can supply multiple -var flags to configure several variables at once, for example: terraform apply -var="region=us-east-1" -var="instance_count=3". While there’s also -var-file to load many variables from a file, the direct CLI method for single or ad-hoc values is the -var flag. Other options like -var-file read from files, -var-generate isn’t a valid Terraform CLI option, and -env isn’t a Terraform flag (though you can use environment variables with the TF_VAR_ prefix to influence variables).