| SunOS 4.1 | SunOS 5.4 |
| biff y | chmod o+x /dev/tty (doesn't work on turing because incoming mail arrives on hypatia) |
| biff n | chmod o-x /dev/tty (doesn't work on turing because incoming mail arrives on hypatia) |
| from | (missing) |
| groups | (missing) |
| hostid | sysdef -h |
| hostname | uname -n |
| lpq | lpstat |
| lpr | lp |
| lprm | cancel |
| printenv | env |
| rusage | (missing) |
| tset | (missing) |
| uptime | who -b |
| users | who -q |
| whereis | (missing) |
| whoami | id |