Which file system is known for its use in Linux operating systems?

The ext4 file system is widely recognized for its use in Linux operating systems and is the default file system for many Linux distributions. It is an evolution of the ext3 file system and offers several enhancements, including larger volume sizes and improved performance through better allocation algorithms and journaling capabilities. Ext4 supports features such as delayed allocation, which helps in reducing fragmentation and improving write performance, making it suitable for various applications and workloads in Linux environments. Its compatibility with older versions, such as ext2 and ext3, allows for easy migration and data recovery, further solidifying its presence in the Linux ecosystem.

In contrast, HFS+ is a file system predominantly associated with macOS, NTFS is utilized primarily in Windows environments, and UFS is found in Unix-like operating systems. Each of these file systems serves its specific platform needs and lacks the widespread integration and optimizations that ext4 possesses in Linux systems.