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Subject: Re: A Unix question. (Slightly off-topic)

Author: Robert Hyatt

Date: 09:13:18 06/25/02

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On June 25, 2002 at 00:27:00, Russell Reagan wrote:

>On June 24, 2002 at 22:04:54, Robert Hyatt wrote:
>
>>Not in unix that I know of.  ls -l shows _all_ files.  There are no "deleted"
>>files in unix...
>
>I thought you had to do ls -a to get all files, and ls -l was just the long file
>listing. Does -l give you all files in the long file listing format? And there
>are too deleted files in unix. For only a few thousand dollars per KB of data,
>there are companies that will gladly retrieve your data for you :)
>
>Russell


ls -a shows files that start with a "." character.  ls by itself does
not...

And there are _no_ deleted files in unix.  When you delete a file, that
free block (or blocks) of space are stuck on the front of a list.  The
next file block that is requested will be one of those and it will be
overwritten.  There is _no_ way to get that data back.  If you RM a file
and instantly power off the machine, you might have a chance to get the
data back although the order will be corrupted.  If you wait 30 seconds
it is _gone_, period.



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