A Practical Guide to Linux Commands, Editors, and Shell Programming, Fourth Edition

Arguments

The action specifies what diskutil is to do. Table VI-15 lists common actions along with the argument each takes.

Table VI-15 diskutil actions

Action	Argument	Description
eraseVolume	type name device	Reformats device using the format type and the label name. The name specifies the name of the volume; alphanumeric names are the easiest to work with.
		The filesystem type is typically HFS+ but can also be UFS or MS-DOS. You can specify additional options as part of the type. For example, a FAT32 filesystem (as used in Windows 98 and above) would have a type of MS-DOS FAT32. A journaled, case-sensitive, HFS+ filesystem would have a type of Case-sensitive Journaled HFS+.
info	device	Displays information about device. Does not ...