How to change log level in Ruby

require 'logger'

# Create a logger instance
logger = Logger.new(STDOUT)

# Set the initial log level (e.g., INFO)
logger.level = Logger::INFO

# Log some messages at different levels
logger.debug("This is a debug message")   # This won't be printed because the log level is set to INFO
logger.info("This is an info message")    # This will be printed
logger.warn("This is a warning message")  # This will be printed
logger.error("This is an error message")  # This will be printed
logger.fatal("This is a fatal message")   # This will be printed

# Change the log level to a different level (e.g., DEBUG)
logger.level = Logger::DEBUG

# Log some messages again
logger.debug("This is a debug message")   # This will be printed now
logger.info("This is an info message")    # This will be printed
logger.warn("This is a warning message")  # This will be printed
logger.error("This is an error message")  # This will be printed
logger.fatal("This is a fatal message")   # This will be printed