I was looking for a utility that would output every byte at an even offset from a file (e.g. skip bytes at odd offset). I couldn’t figure out how to do it with dd (from the looks of it, it might not be possible) and ended up writing my own little utility. I was surprised that there wasn’t already a utility called ‘even’, so here it is:
Interestingly, when compiling with GCC on my MBP, this performs better without any optimization flag, getting >440MB/s!