dups3 - Show Duplicate Files
Usage: dups3 files ... dups3 is a fast script for discovering duplicate files. It achieves its efficiency by comparing file digests rather than the file contents themselves, the latter being much larger in general. The NIST Secure Hash Algorithm 3 (SHA-3) is highly collision resistant, meaning that two files with the same SHA-3 digest have an almost certain probability of being identical. The dups3 script works by computing the SHA3-224 digest of each file and looking for matches. The search can reveal more than one set of duplicates, so the output is written as follows: match1_file1 match1_file2 match1_file3 etc. match2_file1 match2_file2 etc.
Mark Shelor <mshelor@cpan.org>
Perl module Digest::SHA3
To install Digest::SHA3, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Digest::SHA3
CPAN shell
perl -MCPAN -e shell install Digest::SHA3
For more information on module installation, please visit the detailed CPAN module installation guide.