$ whatis df

df df (1) - report file system disk space usage

df df (1m) - displays number of free disk blocks and free files

df df (1b) - display status of disk space on file systems

Examples:

1. df -h
2. df -k
3. df -hF ext4
4. df -h /usr
5. df -F tmpfs

Please click on " df in PDF " format.

Please click on " df in HTML " format.