Friends, I want to begin by thanking Ole Tange for all his work and continuing efforts with GNU Parallel. It is a very impressive set of work. I've read over all the parallel docs, the man pages, the tutorials, the comparisons with other parallel running software, the ;login: article, and the parallel design choices document. An amazing set of documents!
I have a few questions of curiosity and hope you will allow me to post them over the next few days. Question 1: The choice of ::: and :::: are unique. Yes, they are arbitrary and they can be changed with parallel command line arguments. But how/why where they chosen? I have a good guess as to why ":" and "::" were not used, but how did Ole decide on ::: and :::: and why did he skip : and :: ? Much thanks....
