# ZFS Commands
Use sudo for all commands unless specifically stated.

## Rename dataset
`zfs [-f][-p][-u] rename oldname newname`  
(Note: remember to use the full path i.e. tank/oldname etc.)  
- `-f`  
*to force unmount the dataset if needed (has no effect if used together with `-u`)*
- `-p`  
*Creates all the nonexistent parent datasets. Datasets created in this manner are automatically mounted according to the mountpoint property inherited from their parent.*
- `-u`  
*Do not remount file systems during rename. If a file system's mountpoint property is set to legacy or none, the file system is not unmounted even if this option is not given*

`zfs -r rename snapshot snapshot`  
- `-r`  
*Recursively rename the snapshots of all descendent datasets. Snapshots are the only dataset that can be renamed recursively*

## Get compression ratios
`zfs get compressratio [dataset]`  
*If no dataset given, the command with list out all datasets and their compressionratios. If dataset given, then only that dataset is returned.*