No /dev/nul for users

[Gustav Schaffter]

Hi,

When one of my users try to:

any_command | /dev/nul

the response is either that the file /dev/nul doesn't exist or that he
doesn't have permissions to do that.

If the same user tries to:

any_command | /dev/null
                   ^^^^

it works fine.

I'm surpriced. Why is /dev/nul reserved for root? What could a user harm
by sending stuff to /dev/nul ? And what's the difference between
/dev/nul and /dev/null ?

Regards
Gustav

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