In Linux, what is the purpose of the 'tune2fs' command?

The 'tune2fs' command is specifically designed to adjust parameters of the ext2, ext3, and ext4 filesystems on Linux. This tool enables users to modify various filesystem options such as the reserved block count, mount count, and maximum mount count before a filesystem check is required, among others. By fine-tuning these parameters, administrators can optimize filesystem performance and behavior based on specific needs.

For example, an administrator might increase the number of reserved blocks if a filesystem runs low on space, ensuring that critical system processes still have adequate resources. The capability to modify these components makes 'tune2fs' a vital tool for effective filesystem management and configuration in Linux environments.