From: http://www.opengroup.org/onlinepubs/009695399/utilities/dd.html
For the bs=, cbs=, ibs=, and obs= operands, the application shall
supply an expression specifying a size in bytes. The expression,
expr, can be:
1. A positive decimal number
2. A positive decimal number followed by k, specifying
multiplication by 1024
3. A positive decimal number followed by b, specifying
multiplication by 512
4. Two or more positive decimal numbers (with or without k
or b) separated by x, specifying the product of the
indicated values
So nobody follows the POSIX specification to the letter. Where to
go from here?
# Han
