Identity

Property	Value
Binary	`df`
Config	No persistent config — invoked directly
Logs	No persistent logs — output to terminal
Type	CLI tool (part of coreutils)
Install	`apt install coreutils` / `dnf install coreutils` (pre-installed on all Linux systems)

Key Operations

Task	Command
Human-readable sizes (KB/MB/GB)	`df -h`
Show all filesystems including zero-size	`df -a`
Show inode usage instead of block usage	`df -i`
Exclude tmpfs and devtmpfs from output	`df -h -x tmpfs -x devtmpfs`
Usage for a specific path or mountpoint	`df -h /var/log`

Related skills