diskutil list
df -HLast login: Thu Feb 14 21:26:40 on console
MacBook-Air-de-Samantha:~ samanthapeirano$ diskutil list df -H
Usage:  diskutil list [-plist] [Filter] [MountPoint|DiskIdentifier|DeviceNode]
Display complete or partial list of whole, partition, and Storage System disks.
Filter is a combination of "internal", "external", "physical", or "virtual".
Root or administrator access is not required.
MacBook-Air-de-Samantha:~ samanthapeirano$Last login: Thu Feb 14 21:28:44 on ttys000
MacBook-Air-de-Samantha:~ samanthapeirano$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk1         121.1 GB   disk0s2
/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +121.1 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume Macintosh HD            57.9 GB    disk1s1
   2:                APFS Volume Preboot                 21.5 MB    disk1s2
   3:                APFS Volume Recovery                519.0 MB   disk1s3
   4:                APFS Volume VM                      1.1 GB     disk1s4
/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:                  Apple_HFS Clone                   996.0 GB   disk2s2
   3:                  Apple_HFS OS X Base System        3.7 GB     disk2s3
MacBook-Air-de-Samantha:~ samanthapeirano$Last login: Fri Feb 15 01:43:59 on ttys000
MacBook-Air-de-Samantha:~ samanthapeirano$ df -H
Filesystem      Size   Used  Avail Capacity iused               ifree %iused  Mounted on
/dev/disk1s1    121G    58G    61G    49%  867803 9223372036853908004    0%   /
devfs           195k   195k     0B   100%     660                   0  100%   /dev
/dev/disk1s4    121G   1.1G    61G     2%       1 9223372036854775806    0%   /private/var/vm
map -hosts        0B     0B     0B   100%       0                   0  100%   /net
map auto_home     0B     0B     0B   100%       0                   0  100%   /home
/dev/disk2s2    996G   1.2G   995G     1%   11520          4294955759    0%   /Volumes/Clone
/dev/disk2s3    3.7G   1.3G   2.4G    35%   45242          4294922037    0%   /Volumes/OS X Base System
MacBook-Air-de-Samantha:~ samanthapeirano$diskutil partitionDisk disk2 gpt jhfs+ Clone 121g jhfs+ DDE 0bdiskutil listLast login: Fri Feb 15 10:50:40 on console
MacBook-Air-de-Samantha:~ samanthapeirano$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk1         121.1 GB   disk0s2
/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +121.1 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume Macintosh HD            62.6 GB    disk1s1
   2:                APFS Volume Preboot                 21.6 MB    disk1s2
   3:                APFS Volume Recovery                519.0 MB   disk1s3
   4:                APFS Volume VM                      2.1 GB     disk1s4
/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:                  Apple_HFS Clone                   120.2 GB   disk2s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk2s3
   4:                  Apple_HFS DDE                     878.8 GB   disk2s4
MacBook-Air-de-Samantha:~ samanthapeirano$diskutil eraseDisk jhfs+ "DDE de Samantha" gpt disk2 ; diskutil list disk2 
	