[1|user@FinN900|~]root
FinN900:~# which dd
/bin/dd
FinN900:~# dd iflag=direct if=/dev/mmcblk0 oflag=sync of=/dev/null bs=1M count=100
BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso31+0cssu0) multi-call binary

Usage: dd [if=FILE] [of=FILE] [bs=N] [count=N] [skip=N]
	[seek=N]

FinN900:~# bash
FinN900:~# which dd
/usr/bin/gnu/dd
FinN900:~#