Using diskutil to erase USB

yuyang@YYStation v2ray % diskutil eraseDisk ExFAT Starkey disk2
Started erase on disk2
Unmounting disk
Creating the partition map
Waiting for partitions to activate
Formatting disk2s2 as ExFAT with name Starkey
Volume name      : Starkey
Partition offset : 411648 sectors (210763776 bytes)
Volume size      : 7417856 sectors (3797942272 bytes)
Bytes per sector : 512
Bytes per cluster: 32768
FAT offset       : 128 sectors (65536 bytes)
# FAT sectors    : 1024
Number of FATs   : 1
Cluster offset   : 1152 sectors (589824 bytes)
# Clusters       : 115886
Volume Serial #  : 5e9ec994
Bitmap start     : 2
Bitmap file size : 14486
Upcase start     : 3
Upcase file size : 5836
Root start       : 4
Mounting disk
Finished erase on disk2