On Fri, Mar 24, 2017 at 01:33:30PM +0100, 'highskywhy@yahoo.de' highskywhy@yahoo.de [LINUX_Newbies] wrote:
> hello
> how to delete undeletable htm files?
>
> I found rm -f
> But in the manual is written rm -f or rm -ff are very dangerous.
> What can I do wrong?
-f means force. However, if you don't have write permissions to the file,
you still won't be able to do it.
I'm not familiar with -ff, you may mean -rf. The -r means recursive--that
is, if you're removing a directory, adding -r to it means you're removing
everything in that directory. It can be dangerous because it doesn't go
into trash, it is gone forever.
If you are in the wrong directory when you type it, you can damage your
system. For example, if you're in the /usr directory and think you are in a
user's directory, and you do sudo rm -rf * that will remove everything
under /usr, breaking the system.
It's always good to do echo rm -rf <whatever> before doing it, which will
show you the results. I remember working on a server we hosted, and though
these days, I seldom bother with echo rm -rf, for whatever reason, I did.
It turned out that I was in the / directory, rather than where I thought I
was, and if I'd just done rm -rf *, I would have brought the client down
till we could restore from backups.
Again, the file you mention may need root privilege to be removed, that's
a more likely reason than not using -f, unless for some reason, it's been
made immutable--that is, maybe someone ran a chattr on it, making the file
unable to be removed.
--
Scott Robbins
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Posted by: Scott <scottro@nyc.rr.com>
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