'OK, but at that point it's equally possible that it stands for "catharsis" and represents a file, previously being kept inwardly on disk, being released to sta

'OK, but at that point it's equally possible that it stands for "catharsis" and represents a file, previously being kept inwardly on disk, being released to standard output.' Catenate and concatenate mean basically the same thing, it's trivially easy to see people confusing the two - they might even hear one for the other if they're only familiar with one. That's not going to happen with catharsis.