Usage: dd [OPTION]...
Copy a file, converting and formatting according to options.
Options:
if=FILE Read from FILE instead of stdin of=FILE Write to FILE instead of stdout bs=N Read and write N bytes at a time count=N Copy only N input blocks skip=N Skip N input blocks seek=N Skip N output blocks |
Numbers may be suffixed by w (x2), k (x1024), b (x512), or M (x1024^2).
Example:
$ dd if=/dev/zero of=/dev/ram1 bs=1M count=4 4+0 records in 4+0 records out |