diskutil list
df -H
-bash-3.2# diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *750.2 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 749.3 GB disk0s2
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *31.0 GB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_HFS Install OS X Mavericks 30.6 GB disk1s2
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: Apple_partition_scheme *5.5 GB disk2
1: Apple_partition_map 30.7 KB disk2s1
2: Apple_HFS OS X Install ESD 5.5 GB disk2s2
/dev/disk3
#: TYPE NAME SIZE IDENTIFIER
0: Apple_partition_scheme *1.3 GB disk3
1: Apple_partition_map 30.7 KB disk3s1
2: Apple_HFS OS X Base System 1.3 GB disk3s2
/dev/disk4
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk4
/dev/disk5
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk5
/dev/disk6
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk6
/dev/disk7
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk7
/dev/disk8
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk8
/dev/disk9
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk9
1: EFI EFI 209.7 MB disk9s1
2: Apple_HFS Clone 999.9 GB disk9s2
/dev/disk10
#: TYPE NAME SIZE IDENTIFIER
0: untitled *6.3 MB disk10
/dev/disk11
#: TYPE NAME SIZE IDENTIFIER
0: untitled *2.1 MB disk11
/dev/disk12
#: TYPE NAME SIZE IDENTIFIER
0: untitled *1.0 MB disk12
/dev/disk13
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk13
/dev/disk14
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk14
/dev/disk15
#: TYPE NAME SIZE IDENTIFIER
0: untitled *1.0 MB disk15
-bash-3.2#
-bash-3.2# df -H
Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk4s2 1.3G 1.2G 40M 97% 302926 9836 97% /
devfs 206k 206k 0B 100% 696 0 100% /dev
/dev/disk5 524k 147k 377k 29% 34 92 27% /Volumes
/dev/disk6 524k 143k 381k 28% 33 93 26% /private/var/tmp
/dev/disk7 524k 160k 365k 31% 37 89 29% /private/var/run
/dev/disk8 524k 147k 377k 29% 34 92 27% /System/Installation
/dev/disk9 524k 266k 258k 51% 63 63 50% /private/var/db
/dev/disk10 6.3M 1.7M 4.5M 28% 425 1109 28% /private/var/folders
/dev/disk11 2.1M 229k 1.9M 11% 54 456 11% /private/var/root/Library
/dev/disk12 1.0M 143k 905k 14% 33 221 13% /Library/ColorSync/Profiles/Displays
/dev/disk13 524k 164k 360k 32% 38 88 30% /Library/Preferences
/dev/disk14 524k 160k 365k 31% 37 89 29% /Library/Preferences/SystemConfiguration
/dev/disk15 1.0M 143k 905k 14% 33 221 13% /Library/Keychains
/dev/disk0s2 749G 705G 44G 95% 172076710 10857032 94% /Volumes/Macintosh HD
/dev/disk2s2 1000 700G 300G 71% 170965005 73141661 70% /Volumes/Clone
/dev/disk1s2 31G 5.5G 25G 19% 1404136 6072076 19% /Volumes/Image Volume
/dev/disk3s2 5.5G 5.4G 61M 99% 1319629 14816 99% /Volumes/Mac OS X Install DVD
-bash-3.2#
diskutil eraseVolume jhfs+ "Macintosh HD" disk0s2
Started erase on dosks02 Macintosh HD
Unmounting disk
Erasing
Initialized /dev/rdisk0s2 as a 698 GB case-insensitive HFS Plus volume with a 57344k journal
Mounting disk
Finished erase on disk0s2 Macintosh HD