When invoked from the command line, Parted supports the following syntax:
# parted [option] device [command [argument]]
Available options and commands follow. For detailed explanations of the use of Parted commands, see Parted Session Commands. Options begin with a hyphen, commands do not:
Options:
display a help message
lists partition layout on all block devices
display output in machine parseable format
display output in JSON format
never prompt the user
automatically answer exceptions with "fix" in script mode, which is useful for: GPT header not including full disk size; moving the backup GPT table to the end of the disk; MAC fix missing partition map entry; etc.
Set alignment for newly created partitions, valid alignment types are: none, cylinder, minimal and optimal.
display the version