Long time Windows users know that if I told you to do this in a Command Prompt…
DELTREE /Y C:\WINDOWS
or
RD /S C:\WINDOWS
..this will wipe the entire C:\WINDOWS directory and cause the system to be inoperable within moments.
Seems some people in the Ubuntu forums are posting similar "dangerous commands" are doing the same thing, such as telling people to..
rm -rf /
rm -rf .
rm -rf *
..or similar. The above is more or less the equivalent of a DELTREE and/or RD in Windows. You run those commands and it’s bye-bye Ubuntu.
However what REALLY sucks is that there are lots of ways to screw up an Ubuntu (or any end user *nix) system.
Ordinarily you’d tell someone to RTFM if they didn’t know a Windows command – but you can’t do that for an Ubuntu system, because there’s no "M" in "RTFM".

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