Tags: Linux Introduction: Determining your system’s disk space on Linux is achievable from the command line interface (CLI). This value can change depending on free/available space. Requirements: Access the Linux command line. Procedure: Upon gaining access to the Linux command line interface (CLI), type: df -h This will provide a list of mounted partitions with six columns: Filesystem Size Used Avail Use% Mounted on These headers will be followed by the usage of the partitions/disks in easy to read format. More Information: Type either: man df man fdisk -l