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A Quick Guide to Using df Command in Linux to Check Disk Space

This article will help you understand the use of the df command in Linux and how to use it with multiple options in Linux/Unix. The ‘df’ (Disk Free) command is an inbuilt utility for finding available disk usage space on Linux servers/storage. This command is mainly used by System Admins, as it is one of their main tasks to monitor the server/storage space. Pro tip: don’t confuse df with the du command.

This guide will show you how to use the df command in Linux with options and examples. All the below examples were tested on RHEL/CentOS 7.6.