On 01/05/2011 06:47 AM, Andre Robatino wrote:
> S Mathias <smathias1972 <at> yahoo.com> writes:
>
>> find duplicate filenames in a folder
>> find | perl -ne 's!([^/]+)$!lc $1!e; print if 1 == $seen{$_}++'
>>
>> find duplicate filenames in a folder recursively
>> ? how?
> I haven't used it yet, but fdupes is probably what you want (yum install fdupes).
>
> Description :
> FDUPES is a program for identifying duplicate files residing within specified
> directories.
>
>
>
>
On a related note. I use rsnapshot to perform backups, and it uses hard
links to prevent duplicates, All well and good, but in some cases a
backup failed for some reason, so that my directory hourly.0 no longer
has files with hard links to the other directories. What I would like to
do is to run a script or program to compare 2 directories (say hourly.0
and daily.0 in rsnapshot parlance), and when it finds a duplicate file,
it then removes 1 and then does a hard link. An example would be:
-rw-r--r-- 1 root root 970 Dec 20 09:29 hosts
#file that broke the links (hourly.0)
-rw-r--r-- 15 root root 970 Dec 20 09:29 hosts
#original file that backed up correctly (daily.1)
In the above, it indicates that possibly a previous backup did not run
correctly, so rsync using the --link-dest parameter. In the above
scenario, I have 2 copies of hosts that are identical, but the first one
in hourly.0 was not properly hardlinked because of a previous failure.
Fdupes does a good job in identifying true dups, but I would like it to
go 1 step further. I could possibly just write a script.
--
Jerry Feldman <gaf@xxxxxxx>
Boston Linux and Unix
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