Step-by-step explanations, real-world issues, and simplified understanding. Master every angle — from foundational concepts to real-world troubleshooting.
What we cover
Complete overview mapping DevOps concepts for Linux Process and System Management.
Written guides that show you how to apply this concept in real projects.
Quick command and config references — copy what you need, when you need it.
Key words used in this concept — explained simply, no jargon.
A filesystem is the method an operating system uses to organise, store, and retrieve files on a storage device. Linux uses ext4 and XFS most commonly in production, plus virtual filesystems like /proc and /sys that exist only in memory.
An inode is a data structure in a Linux filesystem that stores metadata about a file — its permissions, owner, size, and data block locations — but not its filename. The filename lives in a directory entry that points to the inode number.