LINUX COMMAND ATLAS · COMMAND GUIDE

Linux df command

Show available and used disk space for mounted filesystems.

GNU Coreutils

Syntax

Command form

df [OPTION]... [FILE]...

6 options

Option	What it does
`-h, --human-readable`	Show sizes in powers of 1024 with readable units.
`-H, --si`	Show sizes in powers of 1000.
`-T, --print-type`	Include filesystem type.
`-i, --inodes`	Show inode usage instead of block usage.
`-P, --portability`	Use the POSIX output format.
`--total`	Display a grand total where applicable.

3 examples

Show available and used disk space for mounted filesystems.

df -h

Show mounted filesystems, types and readable capacity.

df -hT

Check inode usage for the filesystem containing /var.

df -i /var

df reports filesystem-level space. A full filesystem and exhausted inodes are different problems; check both when diagnosing write failures.