On Oct 26, 2017, at 10:37 AM, Gordon Messmer <gordon.messmer at gmail.com> wrote: > > On Wed, Oct 25, 2017 at 9:47 AM, Warren Young <warren at etr-usa.com> wrote: >> >> CentOS 5 is definitely out, as that ships Bash 3, which lacks this feature. > > Nonsense. Every POSIX shell has an associative array called "the filesystem.” Ah, *there’s* our masochist. I knew we had at least one around here somewhere. :) Takes one to know one, I suppose: not long ago, I proposed using the filesystem to implement a [DAG][1] in shell. ;) [1]: https://en.wikipedia.org/wiki/Directed_acyclic_graph