Find files with same name but different content?
Solution 1
Update: fixed a typo in the script: changed print $NF
to print $3
; also tidied things up, and added some comments.
Assuming file names do not contain \n
, the following prints out a sorted list which breaks (as in: section control breaks) at unique file name
, unique md5sum
, and shows the corresponding group of file paths.
#!/bin/bash
# Choose which script to use for the final awk step
out_script=out_all
# Print all duplicated file names, even when md5sum is the same
out_all='{ if( p1 != $1 ) { print nl $1; print I $2 }
else if( p2 != $2 ) { print I $2 }
print I I $3; p1=$1; p2=$2; nl="\n" }
END { printf nl}'
# Print only duplicated file names which have multiple md5sums.
out_only='{ if( p1 != $1 ) { if( multi ) { print pend }
multi=0; pend=$1 "\n" I $2 "\n" }
else if( p2 != $2 ) { multi++; pend=pend I $2 "\n" }
pend=pend I I $3 "\n"; p1=$1; p2=$2 }
END { if( multi ) print pend }'
# The main pipeline
find "${1:-.}" -type f -name '*' | # awk for duplicate names
awk -F/ '{ if( name[$NF] ) { dname[$NF]++ }
name[$NF]=name[$NF] $0 "\n" }
END { for( d in dname ) { printf name[d] }
}' | # standard md5sum output
xargs -d'\n' md5sum | # " "==text, "*"==binary
sed 's/ [ *]/\x00/' | # prefix with file name
awk -F/ '{ print $3 "\x00" $0 }' | # sort by name. md5sum, path
sort | # awk to print result
awk -F"\x00" -v"I= " "${!out_script}"
Output showing only file names with multiple md5
s
afile.html
53232474d80cf50b606069a821374a0a
./test/afile.html
./test/dir.svn/afile.html
6b1b4b5b7aa12cdbcc72a16215990417
./test/dir.svn/dir.show/afile.html
Output showing all files with the same name.
afile.html
53232474d80cf50b606069a821374a0a
./test/afile.html
./test/dir.svn/afile.html
6b1b4b5b7aa12cdbcc72a16215990417
./test/dir.svn/dir.show/afile.html
fi le.html
53232474d80cf50b606069a821374a0a
./test/dir.svn/dir.show/fi le.html
./test/dir.svn/dir.svn/fi le.html
file.html
53232474d80cf50b606069a821374a0a
./test/dir.show/dir.show/file.html
./test/dir.show/dir.svn/file.html
file.svn
53232474d80cf50b606069a821374a0a
./test/dir.show/dir.show/file.svn
./test/dir.show/dir.svn/file.svn
./test/dir.svn/dir.show/file.svn
./test/dir.svn/dir.svn/file.svn
file.txt
53232474d80cf50b606069a821374a0a
./test/dir.show/dir.show/file.txt
./test/dir.show/dir.svn/file.txt
./test/dir.svn/dir.show/file.txt
./test/dir.svn/dir.svn/file.txt
Solution 2
For those who want to see only a list of filenames, here is the relevant part of Peter.O's answer:
find "${1:-.}" -type f -name '*' |
awk -F/ '{ if( name[$NF] ) { dname[$NF]++ }
name[$NF]=name[$NF] $0 "\n" }
END { for( d in dname ) { printf name[d] "\n" }
}'
I don't need md5sums because I use fslint-gui
before the script to clear all duplicates.
Solution 3
finddup this tool can also help you in listing out the files with same names or content..
Solution 4
Here's a Perl script. Run it in the directory at the top of the tree you want to search. The script depends on find
and md5
, but the latter can be replaced with sha1
, sum
or any other file hashing program that accepts input on stdin and outputs a hash on stdout.
use strict;
my %files;
my %nfiles;
my $HASHER = 'md5';
sub
print_array
{
for my $x (@_) {
print "$x\n";
}
}
open FINDOUTPUT, "find . -type f -print|" or die "find";
while (defined (my $line = <FINDOUTPUT>)) {
chomp $line;
my @segments = split /\//, $line;
my $shortname = pop @segments;
push @{ $files{$shortname} }, $line;
$nfiles{$shortname}++;
}
for my $shortname (keys %files) {
if ($nfiles{$shortname} < 2) {
print_array @{ $files{$shortname} };
next;
}
my %nhashes;
my %revhashes;
for my $file (@{ $files{$shortname} }) {
my $hash = `$HASHER < $file`;
$revhashes{$hash} = $file;
$nhashes{$hash}++;
}
for my $hash (keys %nhashes) {
if ($nhashes{$hash} < 2) {
my $file = $revhashes{$hash};
print "$file\n";
}
}
}
Related videos on Youtube
Vitalij
I am Nicolas Raoul, IT consultant in Tokyo. Feel free to copy/paste the source code from my StackExchange answers, I release it to the public domain.
Updated on September 18, 2022Comments
-
Vitalij over 1 year
I want to generate a list of files that have:
- Same name
- Different content
in a directory (including all children directories and content).
How to do? Bash, perl, anything is fine.
So, two files with the same name and same content should not show up.
-
Kyle Jones about 12 yearsSuppose there are three files with the same name and two of the three are identical?
-
Vitalij about 12 years@KyleJones: "three files with the same name and two of the three are identical" > Then this filename should be added to the list
-
nightograph about 9 yearson my mac this shows the duplicate files same name same content