I did some quick research on the POSIX thing and it looks like cd (without parameters) is defined in POSIX: https://www.unix.com/man-page/posix/1posix/cd/ http

I did some quick research on the POSIX thing and it looks like cd (without parameters) is defined in POSIX: https://www.unix.com/man-page/posix/1posix/cd/ https://www.unix.com/man-page/posix/1posix/cd/ Also I don’t know why many of my posts keep getting downvoted even when they’re factually accurate.