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FDUPES(1)							     FDUPES(1)

NAME
       fdupes - finds duplicate files in a given set of directories

SYNOPSIS
       fdupes [ options ] DIRECTORY ...

DESCRIPTION
       Searches	 the  given  path for duplicate files. Such files are found by
       comparing file sizes and MD5 signatures,	 followed  by  a  byte-by-byte
       comparison.

OPTIONS
       -r --recurse
	      for  every  directory  given  follow  subdirectories encountered
	      within

       -R --recurse:
	      for each directory given after this option follow subdirectories
	      encountered  within  (note the ':' at the end of option; see the
	      Examples section below for further explanation)

       -s --symlinks
	      follow symlinked directories

       -H --hardlinks
	      normally, when two or more files point to	 the  same  disk  area
	      they are treated as non-duplicates; this option will change this
	      behavior

       -n --noempty
	      exclude zero-length files from consideration

       -f --omitfirst
	      omit the first file in each set of matches

       -A --nohidden
	      exclude hidden files from consideration

       -1 --sameline
	      list each set of matches on a single line

       -S --size
	      show size of duplicate files

       -m --summarize
	      summarize duplicate files information

       -q --quiet
	      hide progress indicator

       -d --delete
	      prompt user for files to	preserve,  deleting  all  others  (see
	      CAVEATS below)

       -N --noprompt
	      when  used  together  with  --delete, preserve the first file in
	      each set of duplicates and delete the others  without  prompting
	      the user

       -p --permissions
	      don't  consider  files  with different owner/group or permission
	      bits as duplicates

       -v --version
	      display fdupes version

       -h --help
	      displays help

SEE ALSO
       md5sum(1)

NOTES
       Unless -1 or  --sameline	 is  specified,	 duplicate  files  are	listed
       together	 in groups, each file displayed on a separate line. The groups
       are then separated from each other by blank lines.

       When -1 or --sameline is specified,  spaces  and	 backslash  characters
       (\) appearing in a filename are preceded by a backslash character.

EXAMPLES
       fdupes a --recurse: b
	      will follow subdirectories under b, but not those under a.

       fdupes a --recurse b
	      will follow subdirectories under both a and b.

CAVEATS
       If  fdupes returns with an error message such as fdupes: error invoking
       md5sum it means the program has been compiled to use an	external  pro‐
       gram  to calculate MD5 signatures (otherwise, fdupes uses internal rou‐
       tines for this purpose), and an error has occurred while attempting  to
       execute	it. If this is the case, the specified program should be prop‐
       erly installed prior to running fdupes.

       When using -d or --delete, care should be taken to insure against acci‐
       dental data loss.

       When  used together with options -s or --symlink, a user could acciden‐
       tally preserve a symlink while deleting the file it points to.

       Furthermore, when specifying a particular directory more than once, all
       files  within  that  directory  will be listed as their own duplicates,
       leading to data loss should a user preserve a file without its  "dupli‐
       cate" (the file itself!).

AUTHOR
       Adrian Lopez <adrian2@caribe.net>

								     FDUPES(1)
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