identix

Python utility which will recursively scan one or more given directories for duplicate files.

• What is a duplicate?
• Usage
• Examples

What is a duplicate?

Files are considered duplicate based on their identical binary representation:

• Files are scanned and grouped by file size to quickly rule out non-duplicates.
• Grouped files then have SHA-1 hashes calculated - those that match are duplicates.

Files to consider can optionally be filtered based on:

• One or more glob filespecs.
• Minimum file size.

Usage

usage: identix.py [-h] [--include [INCLUDE [INCLUDE ...]]]
                  [--min-size MIN_SIZE] [--progress]
                  [--report-file REPORT_FILE]
                  [--report-file-format {text,JSON}]
                  scandir [scandir ...]

Recursively scan one or more directories for duplicate files.

positional arguments:
  scandir               source directory/directories for scanning

optional arguments:
  -h, --help            show this help message and exit
  --include [INCLUDE [INCLUDE ...]]
                        glob filespec(s) to include in scan, if omitted all
                        files are considered
  --min-size MIN_SIZE   minimum filesize considered
  --progress            show progress during file diffing
  --report-file REPORT_FILE
                        send duplicate report to file, rather than console
  --report-file-format {text,JSON}
                        format of duplicate report file

Notes:

• The --include argument evaluates filename only, so expects globs such as *.jpg or image*.png.

• Omitting --report-file output file argument will display results directly on the console

• Option --report-file-format enables --report-file as JSON - format example:

   [
     {
       "sha-1": "xxxxx",
       "size": 12345,
       "fileList": ["/path/to/file","/path/to/another/file"]
     },
     {
       "sha-1": "yyyyy",
       "size": 6789,
       "fileList": ["/path/to/yet/another/file","/one/more/file"]
     },
   ]

Examples

Scan for duplicates greater than or equal to 2048 bytes in the directories of /dupe/path/one and /dupe/path/two:

$ ./identix.py \
  --min-size 2048 \
    -- /dupe/path/one /dupe/path/two

Find duplicates that match file globs of *.jpg and *.png in /my/images, write results to /path/to/report.txt and display processing progress to console:

$ ./identix.py \
  --include "*.jpg" "*.png" \
  --progress \
  --report-file /path/to/report.txt \
    -- /my/images