dd.sh

> diskutil list
/dev/disk0 (internal):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                         251.0 GB   disk0
   1:                        EFI EFI                     314.6 MB   disk0s1
   2:          Apple_CoreStorage Macintosh HD            250.0 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

/dev/disk1 (internal, virtual):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           +249.7 GB   disk1
                                 Logical Volume on disk0s2
                                 396EECED-8130-4CCD-8C24-02EE2A28C99D
                                 Unencrypted

/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *7.8 GB     disk2
   1:                 DOS_FAT_32 WIN                     7.8 GB     disk2s1

/dev/disk4 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            C_ALL_X86-64FRE_EN-... +4.5 GB     disk4

> diskutil unmountDisk /dev/disk2
Unmount of all volumes on disk2 was successful

> sudo dd if=/Users/embarq/Downloads/Win10_1709_English_x64.iso of=/dev/disk2 bs=1m;
4479+1 records in
4479+1 records out
4697362432 bytes transferred in 1854.985112 secs (2532291 bytes/sec)

> diskutil eject /dev/disk2
Disk /dev/disk2 ejected