cfunction
src/core/os.c on line 1548, column 1
(os/cd path)
Change current directory to path. Returns nil on success, errors on
failure.
# janet 1.10.1
# note that os/cd does not appear to update PWD in the shell's environment.
(os/cwd) # => "/Users/cell/tmp"
(os/getenv "PWD") # => "/Users/cell/tmp"
(os/cd "/tmp") # => nil
(os/cwd) # => "/private/tmp" (on Apple, /tmp is actually /private/tmp)
(os/getenv "PWD") # => "/Users/cell/tmp"