command examples

mac $ diskutil list

/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         999.3 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1

   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *999.0 GB   disk1
                                 Logical Volume on disk0s2
                                 B547...AD19
                                 Unencrypted

/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *4.0 TB     disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:                  Apple_HFS Backup - Mac Mini       999.3 GB   disk2s2
   3:                 Apple_Boot Recovery HD             784.2 MB   disk2s3
   4:                  Apple_HFS Backup - Time Machine   2.0 TB     disk2s4
   5:                  Apple_HFS Boot - for Fun          49.5 GB    disk2s5
   6:                 Apple_Boot Recovery HD             650.0 MB   disk2s6
   7:                  Apple_HFS 1T Backup               985.1 GB   disk2s7

mac $
mac $ df
Filesystem      Size   Used  Avail Capacity   iused    ifree %iused  Mounted on
/dev/disk1     930Gi  864Gi   66Gi    93% 226596185 17296037   93%   /
devfs          193Ki  193Ki    0Bi   100%       669        0  100%   /dev
map -hosts       0Bi    0Bi    0Bi   100%         0        0  100%   /net
map auto_home    0Bi    0Bi    0Bi   100%         0        0  100%   /home
/dev/disk2s2   931Gi  765Gi  166Gi    83% 200428475 43553456   82%   /Volumes/Backup - Mac Mini
/dev/disk2s4   1.8Ti  1.6Ti  147Gi    92% 441119165 38598628   92%   /Volumes/Backup - Time Machine
/dev/disk2s5    46Gi   29Gi   17Gi    63%   7590207  4490899   63%   /Volumes/Boot - for Fun
/dev/disk2s7   917Gi  771Gi  147Gi    84% 202019436 38487474   84%   /Volumes/1T Backup
mac $