df flags & options

-h, --human-readable

Show sizes in human-readable format (K, M, G).

df -h

-T, --print-type

Show filesystem type alongside each mount.

df -Th

-i, --inodes

Show inode usage instead of block usage.

df -i

--total

Add a grand total row at the bottom.

df -h --total

--output

Select which columns to display.

df --output=source,fstype,size,used,avail,pcent,target

-x

Exclude filesystems of a specific type.

df -h -x tmpfs -x devtmpfs

-t

Show only filesystems of a specific type.

df -h -t ext4

-a, --all

Include pseudo, duplicate, and inaccessible filesystems.

df -ha