tldr/pages/linux/e4defrag.md

e4defrag

Defragment an ext4 file system.

• Defragment the file system:

e4defrag {{/dev/sdXN}}

• See how fragmented a file system is:

e4defrag -c {{/dev/sdXN}}

• Print errors and the fragmentation count before and after each file:

e4defrag -v {{/dev/sdXN}}