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https://github.com/adrianlopezroche/fdupes

FDUPES is a program for identifying or deleting duplicate files residing within specified directories.
https://github.com/adrianlopezroche/fdupes

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FDUPES is a program for identifying or deleting duplicate files residing within specified directories.

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README 

        
Introduction

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FDUPES is a program for identifying duplicate files residing

within specified directories. 



Usage

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Usage: fdupes [options] DIRECTORY...



 -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 the option, manpage for more details)

 -s --symlinks           follow symlinks

 -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

 -G --minsize=SIZE       consider only files greater than or equal to SIZE bytes

 -L --maxsize=SIZE       consider only files less than or equal to SIZE bytes

 -c --cache              speed up file comparisons by keeping track of their

                         signatures in a database; additional parameters may be

                         provided using one or more cache parameters (as below)

 -x cache.OPTION         supply an optional cache parameter, where OPTION is one

                         of the keywords below and multiple options may be

                         supplied via successive -x arguments:

    readonly             read but do not update file signatures

    prune                look through entire cache and delete orphaned entries

    clear                clear all entries from cache

    vacuum               reduce size of DB file, if possible

                         (note that the options prune, clear, and vacuum may be

                         employed without supplying a DIRECTORY argument, and

                         will take effect even if readonly is also specified)

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

 -A --nohidden           exclude hidden files from consideration

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

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

 -S --size               show size of duplicate files

 -t --time               show modification time of duplicate files

 -m --summarize          summarize dupe information

 -q --quiet              hide progress indicator

 -d --delete             prompt user for files to preserve and delete all

                         others; important: under particular circumstances,

                         data may be lost when using this option together

                         with -s or --symlinks, or when specifying a

                         particular directory more than once; refer to the

                         fdupes documentation for additional information

 -D --deferconfirmation  in interactive mode, defer byte-for-byte confirmation

                         of duplicates until just before file deletion

 -P --plain              with --delete, use line-based prompt (as with older

                         versions of fdupes) instead of screen-mode interface

 -N --noprompt           together with --delete, preserve the first file in

                         each set of duplicates and delete the rest without

                         prompting the user

 -I --immediate          delete duplicates as they are encountered, without

                         grouping into sets; implies --noprompt

 -p --permissions        don't consider files with different owner/group or

                         permission bits as duplicates

 -o --order=BY           select sort order for output and deleting; by file

                         modification time (BY='time'; default), status

                         change time (BY='ctime'), or filename (BY='name')

 -i --reverse            reverse order while sorting

 -l --log=LOGFILE        log file deletion choices to LOGFILE

 -v --version            display fdupes version

 -h --help               display this help message



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. For

instance, "with spaces" becomes "with\ spaces".



When using -d or --delete, care should be taken to insure against

accidental data loss. While no information will be immediately

lost, using this option together with -s or --symlink can lead

to confusing information being presented to the user when prompted

for files to preserve. Specifically, a user could accidentally

preserve a symlink while deleting the file it points to. A similar

problem arises 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 "duplicate" (the file itself!).



Contact Information for Adrian Lopez

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email: [email protected]



Legal Information

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FDUPES Copyright (c) 1999-2019 Adrian Lopez



Permission is hereby granted, free of charge, to any person

obtaining a copy of this software and associated documentation files

(the "Software"), to deal in the Software without restriction,

including without limitation the rights to use, copy, modify, merge,

publish, distribute, sublicense, and/or sell copies of the Software,

and to permit persons to whom the Software is furnished to do so,

subject to the following conditions:



The above copyright notice and this permission notice shall be

included in all copies or substantial portions of the Software.



THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 

OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 

IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 

CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 

TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 

SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.