Hmmm... if I had my way I would charge you with plagiarism and have you incarcerated...

Just how hard can it be to quote the original source... 


Simon


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                 UNIX GURU UNIVERSE 
                    UNIX HOT TIP

           Unix Tip 1999 - June 22, 2003

           http://www.ugu.com/sui/ugu/show?tip.today

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=


WHY MV IS SLOW

mv command across filesystems
is slower on large files

WHY?

mv would be slow if you are 
moving files across filesystem.

The inode number changes only 
when a file is moved across 
file system. 

A new inode number means a new 
file is physically created on 
disk.

It remains unchanged, if it 
is within the same filesystem.
One can verify by using 
ls -il command on that file.

mv uses rename() system call. 
if it fails, it uses copy routine
(basicailly reads from a file and 
writes in another file).

mv command across filesystem is 
more of a copy then mv.


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"David Ziggy Lubowa" <[EMAIL PROTECTED]> wrote:

>
>WHY MV IS SLOW
>
>mv command across filesystems
>is slower on large files
>
>WHY?
>
>mv would be slow if you are
>moving files across filesystem.
>
>The inode number changes only
>when a file is moved across
>file system.
>
>A new inode number means a new
>file is physically created on
>disk.
>
>It remains unchanged, if it
>is within the same filesystem.
>One can verify by using
>ls -il command on that file.
>
>mv uses rename() system call.
>if it fails, it uses copy routine
>(basicailly reads from a file and
>writes in another file).
>
>mv command across filesystem is
>more of a copy then mv.
>
>
>
>-- 
>David Ziggy Lubowa
>Network Engineer
>One2net
>-----------------------------------
>A Network Of People And Technology
>
>
>

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