Enable quota on btrfs, creating subvolume for every user and then

btrfs-enable-quota.sh

allusers=$(cat)

for i in $allusers ; do
    mv $i ==$i && \
    btrfs subvol create $i && \
    chown --reference===$i $i
done

for i in $allusers ; do
  cp -a --reflink=always ==$i/. $i
  #pushd ==$i && \
  #find . -mindepth 1 -maxdepth 1 | while read j; do
  #  echo $i/$j
  #  cp -a --reflink=always $j ../$i/$j
  #done
  #popd
done