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The Directory Differential hTool

DDH traverses input directories and their subdirectories. It also hashes files as needed and reports findings.

The H in "hTool" is silent. The H in its abbreviation, "DDH," is not.

This tool is called DDH for two very good reasons.

• DDT is a dangerous pesticide
• I mistyped when I created the project

Install

• Install Rust
• cargo install --git https://github.com/darakian/ddh ddh
• The DDH binary will be installed into $CARGO_HOME/.bin/ddh, which usually is $HOME/.cargo/bin/ddh. This should be in your PATH already if you're using rustup.

Features

DDH supports both a standard output for human comprehension and a parsable json output for machines.

Example

Directory Difference hTool
Jon Moroney jmoroney@hawaii.edu
Compare and contrast directories.
Example invocation: ddh /home/jon/downloads /home/jon/documents -f duplicates
Example pipe: ddh ~/Downloads/ -o no -v all -f json | someJsonParser.bin

USAGE:
    ddh [OPTIONS] <Directories>...

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

OPTIONS:
    -b, --blocksize <Blocksize>    Sets the display blocksize to Bytes, Kilobytes, Megabytes or Gigabytes. Default is
                                   Kilobytes. [possible values: B, K, M, G]
    -f, --format <Format>          Sets output format. [possible values: standard, json, off]
    -o, --output <Output>          Sets file to save all output. Use 'no' for no file output.
    -v, --verbosity <Verbosity>    Sets verbosity for printed output. [possible values: quiet, duplicates, all]

ARGS:
    <Directories>...    Directories to parse

How Does DDH Work?

DDH works by hashing files to determine their uniqueness and, as such, depends heavily on disk speeds for performance.

Crates.io link

ddh