[plug] Mistakes on your "Sample exam"

[Matt Kemner]

While we're nitpicking the online quiz... :)

I have a problem with question 2.5
"Jimmy wants to power off his computer.  Which of the commands (entered at
the command line) will cause his system to shut down and stop? (Choose the
BEST answer)

a) shutdown
b) halt
c) reboot
d) all of the above

According to them, the correct answer is b)
This is bad because older versions of sysvinit came with a halt program
that should NOT be called directly (the manpage says so)

Even though this was fixed in the later releases, it is still a bad idea
to encourage people to use halt rather than shutdown because shutdown
should work properly on all Linux systems.