Because I just ran into this:

Imagine that you have a ZFS pool, call it tank to match the conventionof ZFS examples, and that it has three spare devices configured. Furtherimagine that you want to remove those three configured spares from thepool:

# zpool remove tank c4t0d0 c4t0d1 c4t0d2
(No error messages are emitted.)

Then, because you are a cautious person (or because you have a toolthat automatically saves your pool

One possible reaction to how we don't really control user desktops is to shrug and let users go their own way ifthey don't want to have one of the short list of provided desktopenvironments. You won't fight it, but you won't do anything to supportit either; you'll let them run Ubuntu, or OS X, or whatever, but they'reentirely on their own.

This is a great way to make a terrible mistake. You really do want '

In light of the complexity that is requiredto use the same set of shell dotfiles on all of the systems where Ihave accounts, one might sensibly ask why I bother. The answer is thatI heavily customize my account's environment; I have all sorts ofaliases , environment variable settings, and so on.

(Such heavy customization does have its downsides , including that I am not really comfortableon a new system until I have brought up my environment. A more subtledisadvantage for a sysadmin is that it