Cleaning Time Machine’s disk

If you get close to the capacity of Time Machine, you can easily solve that by:

Note! You will work as root! You may destroy things!

shell> su -
shell> cd /Volumes/your_time_machine_disk/Backups.backupdb/machine_name
# to find what you can delete just use command (make sure you get correct result)
shell> find . -maxdepth 1 -type d ! -newermt yyyy-mm-dd
# after you know what will be removed
shell> find . -maxdepth 1 -type d ! -newermt yyyy-mm-dd -exec tmutil delete {} \;