cheat.sh/tests/results/5

cheat.sheets:btrfs
# create the subvolume /mnt/sv1 in the /mnt volume
btrfs subvolume create /mnt/sv1
 
# list subvolumes
btrfs subvolume list /mnt
 
# mount subvolume without mounting the main filesystem
mount -o subvol=sv1 /dev/sdb /mnt
 
# delete subvolume
btrfs subvolume delete /mnt/sv1
 
# taking snapshot of a subvolume
btrfs subvolume snapshot /mnt/sv1 /mnt/sv1_snapshot
 
tldr:btrfs
# Create subvolume:
sudo btrfs subvolume create path/to/subvolume
 
# List subvolumes:
sudo btrfs subvolume list path/to/mount_point
 
# Enable quota:
sudo btrfs quota enable path/to/subvolume
 
# Show quota:
sudo btrfs qgroup show path/to/subvolume
 
tldr:btrfs-filesystem
# Defragment a directory recursively (does not cross subvolume boundaries):
sudo btrfs filesystem defragment -v -r path/to/directory
 
tldr:btrfs-subvolume
# btrfs subvolume
# Manage btrfs subvolumes and snapshots.
# More information: <https://btrfs.wiki.kernel.org/index.php/Manpage/btrfs-subvolume>.
 
# Create a new empty subvolume:
sudo btrfs subvolume create path/to/new_subvolume
 
# List all subvolumes and snapshots in the specified filesystem:
sudo btrfs subvolume list path/to/btrfs_filesystem
 
# Delete a subvolume:
sudo btrfs subvolume delete path/to/subvolume
 
# Create a read-only snapshot of an existing subvolume:
sudo btrfs subvolume snapshot -r path/to/source_subvolume path/to/target
 
# Create a read-write snapshot of an existing subvolume:
sudo btrfs subvolume snapshot path/to/source_subvolume path/to/target
 
# Show detailed information about a subvolume:
sudo btrfs subvolume show path/to/subvolume