btrfs filesystem

Manage btrfs filesystems. More information: https://btrfs.readthedocs.io/en/latest/btrfs-filesystem.html.

• Show filesystem usage (optionally run as root to show detailed information):
  btrfs filesystem usage {{path/to/btrfs_mount}}
• Show usage by individual devices:
  sudo btrfs filesystem show {{path/to/btrfs_mount}}
• Defragment a single file on a btrfs filesystem (avoid while a deduplication agent is running):
  sudo btrfs filesystem defragment -v {{path/to/file}}
• Defragment a directory recursively (does not cross subvolume boundaries):
  sudo btrfs filesystem defragment -v -r {{path/to/directory}}
• Force syncing unwritten data blocks to disk(s):
  sudo btrfs filesystem sync {{path/to/btrfs_mount}}
• Summarize disk usage for the files in a directory recursively:
  sudo btrfs filesystem du --summarize {{path/to/directory}}