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#!/usr/bin/perl_parallel -w # For Emacs: -*- mode:cperl; mode:folding; -*- # {{{ use block use strict; use File::Spec; # }}} my $wd = shift @ARGV; $wd = '.' if(!defined $wd); $wd = File::Spec->rel2abs($wd); my %size = map { $_ => -s $_ } @{&files($wd)}; my @fnames = sort { $size{$b} <=> $size{$a} || $a cmp $b } keys %size; # # The only speedup potential I see, is to replace the cmp system call +with # something faster ??? # And to get rid of the File::Spec->abs2rel with some leaner/faster co +de # while(@fnames) { my $f = shift @fnames; next if(-l $f); for my $f2 (@fnames) { next if(-l $f2); last if($size{$f} != $size{$f2}); if(system("cmp -s '$f' '$f2'") == 0) { # $f is the file to be LINKED TO, so we need this as relative pa +th # $f2 is the file to be evtl. LINKED FROM, this can/should be ab +solute $f2 =~ m|^ ( (?: .* / (?: \.\.?\Z(?!\n) )? )? ) ([^/]*) |xs; my $new = File::Spec->abs2rel($f,$1); `ln -sf '$new' '$f2'`; } } } # {{{ files # sub files { my $path = shift; my $f; my @files = (); opendir(DIR, $path); # open directory for $f (readdir(DIR)) { next if($f =~ /^\.|\..$/); # skip . and .. if(-f "$path/$f") { push @files, "$path/$f"; } elsif(-d "$path/$f") { push @files, @{&files("$path/$f")}; } } closedir DIR; # close directory return \@files; } # }}}

In reply to Identical Files to Symbolic Links by PetaMem

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