The VLNEXT macro is mentioned as reserved for implementations though.
There was a ton of wizardry I didn’t know at the time
I hear you. The very first system Unix system I had root to ended up with two etc directories. It took a really long time to figure out I hadn't corrupted the filesystem but instead had created one directory named /etc<DEL> which was an unprintable character.
`mkdir -- "$(echo "-rf \u2215")"` is a fun one for someone else to anxiously rm later ;)
Lol. The lessons I learned about ls -lq, ls -li and find -inum have stuck with me since then, though.