Seems to be something they adopted from FreeBSD if the comment in the script is anything to go by ? (`/usr/bin/cd` is a shell script, you can cat it).
It seems something to do with it being a POSIX system if this SO answer[1] is anything to go by.
Beyond my paygrade though, and given Apple's shell appears to default to the built-in it seems I don't need to care either. :-)
[1] https://unix.stackexchange.com/questions/50022/why-cant-i-re...
Seems to be something they adopted from FreeBSD if the comment in the script is anything to go by ? (`/usr/bin/cd` is a shell script, you can cat it).
It seems something to do with it being a POSIX system if this SO answer[1] is anything to go by.
Beyond my paygrade though, and given Apple's shell appears to default to the built-in it seems I don't need to care either. :-)
[1] https://unix.stackexchange.com/questions/50022/why-cant-i-re...