ls /usr/bin gives me:

  cp
  cat
  cpu-intensive-program
  curl
  dot
  echo
  exec
  fork_test
  go-bench
  grep
  head
  hello
  hello-socket
  http-example
  lat_syscall
  ls
  mkdir
  nice
  node
  pipeline-example
  priority-test
  rm
  rmdir
  sh
  sha1sum
  socket-example
  sort
  stat
  tail
  tee
  touch
  wc
  xargs

Doesn't seem to be cd, but ls does work. Chromium on Arch.